问题
选择题
某交流电电源电压的瞬时值表达式为u=6 sinl00πt（V），则下列说法中正确的是（ ）A．用交流电压表测该电源电压时，示数是6V B．用交流电压表测该电源电压时，示数是6 C．用此电源给电磁打点计时器供电时，打点的时间间隔为0.01s D．把标有“6V 3W”的小灯泡接在该电源上时，小灯泡将被烧毁 |
V
答案
答案：A
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| 某交流电电源电压的瞬时值表达式为u=6sinl00πt（V），则下列说法中正确的是（ ） A．用交流电压表测该电源电压时，示数是6V B．用交流电压表测该电源电压时，示数是6 C．用此电源给电磁打点计时器供电时，打点的时间间隔为0.01s D．把标有“6V 3W”的小灯泡接在该电源上时，小灯泡将被烧毁 |
答案：A
The car, running along the well-lit road now sank in darkness. I broke the 36 on purpose, for fear that the driver was too tired to drive. “When do you go back home in the evening?”“9 o’clock after this trip.” Then when do you come out in the morning?”I 37 another question. “9 o’ clock, too—just as if I worked at an office.” His easiness surprised me, because every time I ride a taxi, what I 38 from the driver are only complaints that they have to work from morning till night, it’s hard to earn money, they’re often 39 by the police, or that their leaders are seated 40 , enjoying the fruits. But this driver told me, “I find it 41 to be a section chief as I was before. I like driving just for pleasure. It’s fortunate that I 42 drive without a passenger. So I earn two or three thousand Yuan a month with ease. Yes, I never 43 an empty taxi. If it goes southward, I go northward. If it goes along a highway, I turn into a narrow street…” His words showed his 44 with his life and the pride he 45 in his job. Such feelings are so 46 among people nowadays as oxygen in high mountain. How many people nowadays can show high ideals by simple living and go far with a calm mind? I couldn’t help feeling moved when finding such a state of mind in a stranger on a cold 47 .
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