题目内容

Racial discrimination has still ______ in some parts of the U.S.A. since it after the Civil War.

A. been existed; has been done away
B. existed; has been done away with
C. been existed; has been done away with
D. existed; was done away with

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The following day I ran nay first race at high ______.

A. latitude
B. altitude
C. longitude
D. attitude

—Who is he Is he our new teacher —I’m sorry. I don’t know ______ and ______ he is.

A. who; what
B. who; how
C. how; what
D. where; how

硝酸甘油对下列哪类血管几乎没有作用

A. 小动脉
B. 小静脉
C. 冠状动脉的输送血管
D. 冠状动脉的侧支血管
E. 冠状动脉的小阻力血管

"We must keep a secret of the things ______ here," the general said ______ at the man in charge of the service office.

A. discussed; and stared seriously
B. being discussed; seriously staring
C. to be discussed; seriously stared
D. having been discussed; and seriously staring

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