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10.\u4ec0\u4e48\u662f\u5237\u63e1\uff1f<\/strong><\/section>\n
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18.\u4ec0\u4e48\u662f\u65e0\u5237\u7535\u673a\uff1f<\/strong><\/section>\n
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20.\u4ec0\u4e48\u662f\u7f3a\u76f8\uff1f<\/strong><\/section>\n
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B \u6709\u5237\u65e0\u9f7f\u8f6e\u6bc2\u7535\u673a\u3001\u65e0\u5237\u65e0\u9f7f\u8f6e\u6bc2\u7535\u673a\u5c5e\u4e8e\u4f4e\u901f\u7535\u673a\u3002<\/section>\n
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25.\u4e00\u822c\u76f4\u6d41\u65e0\u5237\u7535\u673a\u4e3a\u4ec0\u4e48\u8981\u6709\u4e09\u4e2a\u970d\u5c14\uff1f<\/strong><\/section>\n
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26.\u65e0\u5237\u7535\u673a\u970d\u5c14\u7684\u8017\u7535\u91cf\u5927\u81f4\u8303\u56f4\u662f\u591a\u5c11\uff1f<\/strong><\/section>\n
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27.\u4e00\u822c\u7535\u673a\u5728\u591a\u9ad8\u7684\u6e29\u5ea6\u4e0b\u80fd\u591f\u6b63\u5e38\u5de5\u4f5c\uff1f\u7535\u673a\u6700\u591a\u80fd\u591f\u627f\u53d7\u591a\u9ad8\u7684\u6e29\u5ea6\uff1f<\/strong><\/section>\n
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28.\u7535\u673a\u7684\u6e29\u5ea6\u5e94\u5728 20 \u6444\u6c0f\u5ea6\u4ee5\u4e0b\uff0c\u5373\u7535\u673a\u7aef\u76d6\u7684\u6e29\u5ea6\u8d85\u8fc7\u73af\u5883\u6e29\u5ea6\u5e94\u5c0f\u4e8e 20 \u6444\u6c0f\u5ea6\uff0c\u4f46\u7535\u673a\u53d1\u70ed\u8d85\u8fc7 20 \u6444\u6c0f\u5ea6\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/strong><\/section>\n
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29.\u4ec0\u4e48\u539f\u56e0\u5bfc\u81f4\u7535\u673a\u4f1a\u53d1\u70ed\uff1f\u8fd9\u662f\u4e00\u4e2a\u600e\u6837\u7684\u8fc7\u7a0b\uff1f<\/strong><\/section>\n
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A \u7ecf\u8fc7\u6d78\u6e0d\u5904\u7406\u7684\u68c9\u3001\u4e1d\u3001\u7eb8\u677f\u3001\u6728\u6750\u7b49\uff0c\u666e\u901a\u7edd\u7f18\u6f06 105 65<\/section>\n
E \u73af\u6c27\u6811\u8102\u3001\u805a\u8102\u8584\u819c\u3001\u9752\u58f3\u7eb8\uff0c\u4e09\u9178\u7ea4\u7ef4\uff0c\u9ad8\u5ea6\u7edd\u7f18\u6f06 120 80<\/section>\n
B \u7528\u63d0\u9ad8\u4e86\u8010\u70ed\u6027\u80fd\u7684\u6709\u673a\u6f06\u4f5c\u7c98\u5408\u5242\u7684\u4e91\u6bcd\u3001\u77f3\u68c9\u3001\u548c\u73bb\u7483\u7ea4\u7ef4\u7ec4\u5408\u7269 130 90<\/section>\n
F \u7528\u8010\u70ed\u4f18\u826f\u7684\u73af\u6c27\u6811\u8102\u7c98\u5408\u6216\u6d78\u6e0d\u7684\u4e91\u6bcd\u3001\u77f3\u68c9\u548c\u73bb\u7483\u7ea4\u7ef4\u7ec4\u5408\u7269 155 115<\/section>\n
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<\/section>\n
44.\u7535\u673a\u7a7a\u8f6c\u7535\u6d41\u5982\u4f55\u6d4b\u91cf\uff1f<\/strong><\/section>\n
\u5c06\u4e07\u7528\u8868\u7f6e\u4e8e 20A \u6863\u4f4d\uff0c\u5c06\u7ea2\u9ed1\u8868\u7b14\u7a9c\u8fde\u63a5\u5728\u63a7\u5236\u5668\u7684\u7535\u6e90\u8f93\u5165\u7aef\u3002\u6253\u5f00\u7535\u6e90\uff0c\u518d\u7535\u673a\u4e0d\u8f6c\u7684\u60c5\u51b5\u4e0b\uff0c\u8bb0\u5f55\u4e0b\u6b64\u65f6\u4e07\u7528\u8868\u7684\u6700\u5927\u7535\u6d41 A1 \u3002\u8f6c\u52a8\u8f6c\u628a\uff0c\u4f7f\u7535\u673a\u9ad8\u901f\u7a7a\u8f7d\u8f6c\u52a8 10s \u4ee5\u4e0a\uff0c\u7b49\u5f85\u7535\u673a\u8f6c\u901f\u7a33\u5b9a\u540e\uff0c\u5f00\u59cb\u89c2\u5bdf\u5e76\u8bb0\u5f55\u6b64\u65f6\u4e07\u7528\u8868\u7684\u6700\u5927\u6570\u503c A2 \u3002\u7535\u673a\u7a7a\u8f7d\u7535\u6d41 =A2-A1 \u3002<\/section>\n
<\/section>\n
45.\u5982\u4f55\u8bc6\u522b\u7535\u673a\u7684\u597d\u574f\uff1f\u5173\u952e\u770b\u54ea\u4e9b\u53c2\u6570\uff1f<\/strong><\/section>\n
\u4e3b\u8981\u662f\u7a7a\u8f7d\u7535\u6d41\u548c\u9a91\u884c\u7535\u6d41\u7684\u5927\u5c0f\uff0c\u4e0e\u6b63\u5e38\u503c\u5bf9\u6bd4\uff0c\u53ca\u7535\u673a\u6548\u7387\u548c\u626d\u77e9\u7684\u9ad8\u4f4e\uff0c\u4ee5\u53ca\u7535\u673a\u7684\u566a\u58f0\u3001\u632f\u52a8\u548c\u53d1\u70ed\u91cf\uff0c\u6700\u597d\u7684\u65b9\u6cd5\u662f\u7528\u6d4b\u529f\u673a\u6d4b\u8bd5\u6548\u7387\u66f2\u7ebf\u3002<\/section>\n
<\/section>\n
46.180W \u548c 250W \u7535\u673a\u6709\u4f55\u533a\u522b\uff1f\u5bf9\u63a7\u5236\u5668\u6709\u4f55\u8981\u6c42\uff1f<\/strong><\/section>\n
250W \u7684\u9a91\u884c\u7535\u6d41\u5927\uff0c\u5bf9\u63a7\u5236\u5668\u7684\u529f\u7387\u4f59\u91cf\u53ca\u53ef\u9760\u6027\u8981\u6c42\u8f83\u9ad8\u3002<\/section>\n
<\/section>\n
47.\u4e3a\u4ec0\u4e48\u5728\u6807\u51c6\u73af\u5883\u4e0b\uff0c\u7535\u52a8\u8f66\u7684\u9a91\u884c\u7535\u6d41\u4f1a\u56e0\u7535\u673a\u7684\u989d\u5b9a\u4e0d\u540c\u800c\u4e0d\u540c\uff1f<\/strong><\/section>\n
\u4f17\u6240\u5468\u77e5\uff0c\u6807\u51c6\u6761\u4ef6\u4e0b\uff0c\u4ee5\u989d\u5b9a\u8d1f\u8f7d 160W \u6765\u8ba1\u7b97\uff0c\u5728 250W \u7684\u76f4\u6d41\u7535\u673a\u4e0a\u9a91\u884c\u7535\u6d41\u4e3a 4 \u2014 5A \u5de6\u53f3\uff0c\u800c\u5728 350W \u76f4\u6d41\u7535\u673a\u4e0a\u9a91\u884c\u7535\u6d41\u7565\u9ad8\u4e00\u4e9b\u3002<\/section>\n
<\/section>\n
\u4e3e\u4e2a\u4f8b\u5b50\uff1a\u5982\u679c\u7535\u6c60\u7535\u538b\u4e3a 48V\uff0c\u4e24\u4e2a\u7535\u673a 250W \u548c 350W \uff0c\u5176\u989d\u5b9a\u6548\u7387\u70b9\u90fd\u4e3a 80% \uff0c\u5219 250W \u7535\u673a\u7684\u989d\u5b9a\u5de5\u4f5c\u7535\u6d41\u4e3a 6.5A \u5de6\u53f3\uff0c\u800c 350W \u7535\u673a\u7684\u989d\u5b9a\u5de5\u4f5c\u7535\u6d41\u4e3a 9A \u5de6\u53f3\u3002<\/section>\n
<\/section>\n
\u800c\u4e00\u822c\u7535\u673a\u7684\u6548\u7387\u70b9\u662f\u5de5\u4f5c\u7535\u6d41\u504f\u79bb\u989d\u5b9a\u5de5\u4f5c\u7535\u6d41\u8d8a\u8fdc\uff0c\u5176\u503c\u8d8a\u5c0f\uff0c\u540c\u5728 4 \u2014 5A \u7684\u8d1f\u8f7d\u60c5\u51b5\u4e0b\uff0c\u5728 250W \u7684\u7535\u673a\u6548\u7387\u4e3a 70% \uff0c 350W \u7684\u7535\u673a\u6548\u7387\u4e3a 60% \uff0c\u5219\u5728 5A \u7684\u8d1f\u8f7d\u4e0b\uff0c<\/section>\n
<\/section>\n
250W \u7684\u8f93\u51fa\u529f\u7387\u4e3a 48V*5A*70%=168W<\/section>\n
<\/section>\n
350W \u7684\u8f93\u51fa\u529f\u7387\u4e3a 48V*5A*60%=144W<\/section>\n
<\/section>\n
\u800c 350W \u7535\u673a\u4e3a\u4e86\u4f7f\u8f93\u51fa\u529f\u7387\u6ee1\u8db3\u9a91\u884c\u8981\u6c42\u5373\u8fbe\u5230 168W \uff08\u5dee\u4e0d\u591a\u662f\u989d\u5b9a\u8d1f\u8f7d\uff09\uff0c\u5219\u53ea\u6709\u4f7f\u7535\u6e90\u589e\u52a0\uff0c\u4ece\u800c\u4f7f\u6548\u7387\u70b9\u589e\u9ad8\u3002<\/section>\n
<\/section>\n
48.\u4e3a\u4ec0\u4e48\u5728\u540c\u6837\u7684\u73af\u5883\u4e0b\uff0c 350W \u7684\u7535\u673a\u8981\u6bd4 250W \u7684\u7535\u673a\u7684\u7535\u52a8\u8f66\u7684\u7eed\u884c\u91cc\u7a0b\u77ed\uff1f<\/strong><\/section>\n
\u7531\u4e8e\u540c\u6837\u7684\u73af\u5883\u4e0b\uff0c 350W \u7535\u673a\u7684\u7535\u52a8\u8f66\u9a91\u884c\u7535\u6d41\u5927\u6240\u4ee5\u5728\u7535\u6c60\u4e00\u6837\u7684\u60c5\u51b5\u4e0b\uff0c\u5176\u7eed\u884c\u91cc\u7a0b\u4f1a\u77ed\u3002<\/section>\n
<\/section>\n
49.\u5bf9\u4e8e\u7535\u52a8\u52a9\u529b\u8f66\u5382\u5bb6\u5e94\u8be5\u600e\u4e48\u53bb\u9009\u62e9\u7535\u673a\uff1f\u6839\u636e\u4ec0\u4e48\u53bb\u9009\u62e9\u7535\u673a\uff1f<\/strong><\/section>\n
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<\/section>\n
\u7535\u673a\u989d\u5b9a\u529f\u7387\u9009\u62e9\u4e00\u822c\u5206\u4e3a\u4e09\u4e2a\u6b65\u9aa4\uff1a<\/strong><\/section>\n
\u7b2c\u4e00\u6b65\uff0c\u8ba1\u7b97\u8d1f\u8f7d\u529f\u7387 P<\/section>\n
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\u7b2c\u4e09\u6b65\uff0c\u6821\u6838\u9884\u9009\u7535\u673a\u3002<\/section>\n
<\/section>\n
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<\/section>\n
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<\/section>\n
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<\/section>\n
50.60\u5ea6\u76f4\u6d41\u65e0\u5237\u7535\u673a\u6bd4120\u5ea6\u76f4\u6d41\u65e0\u5237\u7535\u673a\u66f4\u6709\u52b2\uff0c\u5bf9\u5417\uff1f\u4e3a\u4ec0\u4e48\uff1f<\/strong><\/section>\n
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