具有非线性并联电阻的避雷器是()避雷器。
A.氧化锌
B.FZ型
C.FS型
D.FCD到
参考答案:B
列竖式计算下面各题,并且验算.
98÷7=
683÷6=
452÷8=
463÷9=
在有余数的除法算式中,验算时,先把______和______相乘,再加上______,看结果是不是和______相等.
29. The film is ______ a film. It is also a good material for education.
A.more than
B.no more than
C.not more than
D.not less than