题目内容

Before we reached the top of the hill, we ________ in the rain.

A. had been caught
B. did catch
C. caught
D. catch

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The children ________ many times not to go near the lake.

A. have told
B. have been told
C. told
D. tell

The work _______ by the time you get there.

A. was done
B. had been done
C. will have been done
D. is done

不与红细胞的生理性变化有关的是

A. 性别
B. 年龄
C. 精神因素
D. 红细胞寿命缩短
E. 感情冲动

若计数5个中方格中红细胞总数为350个，按法定计量单位，应报告为

A. 350万/mm3
B. 350万/μl
C. 3.5×10ˇ6/L
D. 3.5×10ˇ9/L
E. 3.5×10ˇ12/L