在如图所示的电子压力计中,滑动变阻器滑片P与弹簧上端固定在一起,弹簧的压缩长度与受到的压力大小成正比,滑动变阻器PB段电阻为R1,当闭合开关S后( )
A:电路中电流表的读数随压力的增大而增大
B:电路中电压表的读数随压力的增大而增大
C:滑动变阻器PB段R1 的阻值随压力增大而增大
D:把电压表改成压力计时表盘刻度均匀
I have no time to tell you the whole story_________. In short they got married at last.
根据上下文提示补全对话。
A: What's on the farm?
B: ____ ____ a lake and some trees.
A: Is the farm ____?
B: Yes, it's very big.
A: ____ ____ an elephant on the farm?
B: Yes, there is. It's very strong.
A: Is there a house?
B: No, there ____.