题目

现要求测量“2.5V  0.3A”小灯泡的电功率,提供的器材如图所示.(1)在方框中画出实验电路图;(2)把实物图中实验器材连接成实验电路;(3)为了比较小灯泡在不同发光情况下的电功率,同时为方便和读数,请你设计出实验过程中,小灯泡两端应该调节出的几个电压值,并填人右表中. 答案:(1)图略(2)图略(3)(“应该调节出的几个电压值”中,除额定电压值外。所填高于和低于    额定电压的电压值均为电表最小分度值的整数倍,且不超过3V)发散思维演练   There is only one seat left on a bus. A man followed by a woman gets on the bus. What do you think the man should do?“First come and first served”or“Lady first”?   I think the man should ________ because ________.   I hold the opinion that“First come and first served”has ________ because ________.   The woman should ________ because ________.听力
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