According to the news, the American space shuttle Columbia failed______.
A. on Jan. 3rd
B. on Feb. 1st
C. on Mar. 4th
D. on Jan. 2nd
查看答案
遗溺不禁的病因病机为：
A. 肾阳不足，命门火衰，肾气不固
B. 湿热壅滞，膀胱气化受阻
C. 肺脾气陷，气化无权，固涩失职
D. 选项A+选项B
E. 选项A+选项C
When they ______ to the village, it was very late.
A. arrived
B. reached
C. got
D. landed
The writer of the article is（）
A. Mrs. White's niece
B. the Whites' cousin
C. Sarah' s friend at college
D. Jane' s friend at school
The monitor ______ ill, we'd better put the meeting off.
A. is
B. has been
C. been
D. being
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