题目内容

Soon they could see the steam ______ from the wet clothes.

A. to rise
B. rising
C. risen
D. be rising

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I saw him ______ away on a stretcher (担架).

A. carried
B. carrying
C. to be carried
D. being carried

She was not interested in the question ______.

A. discussing
B. be discussed
C. being discussed
D. to discuss

运用后代选择器将下面的

标签内的字变为蓝色,下面选项正确的是()

沧海月明珠有泪,蓝田日暖玉生烟

A. div p{color:blue;}
B. div+p{color:blue;}
C. div~p{color:blue;}
D. div>p{color:blue;}

电压型逆变电路,输出( )为方波。

A. 电压
B. 电流

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