临床中最为常见的酸碱失衡为
A. 呼吸性酸中毒
B. 呼吸性碱中毒
C. 代谢性酸中毒
D. 代谢性碱中毒
Do you know that girl____a yellow coat?
A. to
B. of
C. in
D. with
The first grade teacher gave her class a fun assignment—to draw a picture of something for____they were thankful.
A. where
B. which
C. what
D. that
I am very happy to declare that this year's sales target____.
A. achieved.
B. has achieved.
C. has been achieved.
D. had been achieved.
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