题目内容

Don't put off today's work for tomorrow . I mean, today's work () today

A. may do
B. must do
C. may be done
D. must be done

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A talk on developments in science and technology () in the school hall next week.

A. Given
B. will be given
C. has been given
D. gives

Sally was heard ( ) just now.

A. to laugh
B. laugh
C. laughing
D. is laughed

不是内脏格内的结构的是

A. 喉
B. 气管
C. 咽
D. 食管
E. 交感干

鼻烟癌的好发部位

A. 咽鼓管圆枕
B. 鼻甲后间隙
C. 咽鼓管腭襞
D. 咽隐窝
E. 咽鼓管咽口