变压器油的绝缘能力即电气强度越()越好。
A.少
B.多
C.低
D.高
参考答案:D
What a pity. Considering his ability and experience, he ____ better.
A.need have done
B.must have done
C.can have done
D.might have done
按照天气现象的定义,主导能见度≥1000米但<10000米的现象为()。
A、雾、吹雪、扬沙
B、轻雾、扬沙
C、雾、浮尘、霾
D、雾淞、沙暴