Henry killed the dog. I'll ask him why ________.
A. did he do that
B. he did that
C. he does that
D. he has done so
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滴眼剂的质量要求中,哪一条与注射剂的质量要求不同( )
A. pH值
B. 渗透压
C. 无菌
D. 热原
关于等渗溶液与等张溶液的叙述正确的是( )
A. 0.9%的氯化钠既等渗又等张
B. 等渗是生物学概念
C. 等张是物理化学概念
D. 等渗溶液是指与红细胞张力相等的溶液
He asked me ________ with me.
A. what is the trouble
B. what wrong was
C. what was the matter
D. what trouble it is
I am sure ________ he said is true.
A. that
B. about that
C. of that
D. that what