题目内容

The students into laughter and the teacher finishes story--telling.

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These birds northwards in spring and southward in fall.

At no time in the meeting-rom.

A. is smoking permitted
B. smoking is permitted
C. smoking is it permitted
D. does smoking permit

No sooner than it began to rain heavily.

A. the game begin
B. has the game begun
C. did the game begin
D. had the game begun

2．黏膜下肌瘤最常见的临床表现是

A. 下腹包块
B. 痛经
C. 月经过多或经期延长
D. 白带过多
E. 腰酸，下腹坠胀