题型:问答题 简答题 如图所示,为一环境温度监控电路,R1为灯泡,R2为半导体材料制成的热敏电阻(电阻随温度升高而变小)。当环境温度降低时灯泡的亮度变__________(填“亮”或“暗”)。电路中消耗的总功率P变___________(填“大”或“小”)。 查看答案
题型:问答题 简答题 I got close enough to hear them speaking Chinese, and I said “Ni Hao ” just as I ____ do in China.A.mustB.mightC.canD.should 查看答案