使用携带型火炉或喷灯时，火焰与带电部分的安全距离：电压在10kV以上者，应大于（）。
A.1m
B.1.5m
C.2m
D.3m
参考答案：D
Take great pains to read _____ you can or you won’t have a better understanding of
life．
A．as much as
B．books as much as
C．books as many as
D．as many books as
