小明做“伏安法”测电阻的实验,所用的器材有两节旧干电池串联成的电源,阻值为0~20Ω的滑动变阻器R,待测电阻Rx及如图甲所示的其他器材. (1) 小明将实验电路连成如图甲所示,实验前应将滑动变阻器滑片滑到 端.(选填“A”或“B”) (2) 经检查无误后,闭合开关,小明调节滑动变阻器进行了多次测量.当小明将滑动变阻器调节到接入电路的阻值等于零时,对应的电压表、电流表示数如图乙所示,则该待测电阻Rx= Ω . (Don’t ask him how he is because if he
starts talking about his health you’ll never
_______ him.
A.get away from
B.come up with
C.break up with
D.put up with