题目内容

The accident ___ downtown yesterday resulted from the driver's carelessness.

A.happening
B.happened
C.which had happened
D.which happened

查看答案
更多问题

The factory has turned out ___.

A.twice more TV sets this year than last year
B.TV sets this year twice as many as last year
C.twice as many TV sets this year as last year
D.TV sets twice more this year than last year

She waited at the gate, her hands ___ before her.

A.folding
B.folded
C.were folding
D.were folded

矩磁材料具有较 (小或大)的矫顽磁力和较 (小或大)的剩磁。

若变压器的变比为100,在二次端接5Ω的负载电阻相当于直接在一次端接Ω的电阻。

答案查题题库