题目

It is said in Australia there is more land than the government knows_________. A. it what to do with   B. what to do it with C. what to do with it   D. to do what with it   答案：C不定式短语，意为“怎样利用土地”。小明利用电流表、电压表测量一个定值电阻的阻值。请帮助小明将如图18所示的未连接完的电路连接完整。