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【单选题】
药物的pKa值是指其:A.
90%解离时的pH值
B.
99%解离时的pH值
C.
50%解离时的pH值
D.
不解离时的pH值
E.
完全的pH值
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【单选题】关于体温的生理性变化的叙述不正确的是
A.
清晨2~6时体温最低
B.
下午2~8时体温最高
C.
昼夜体温波动范围不超过0.5℃
D.
与人体活动有关
E.
与机体代谢的相应周期变化有关
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【单选题】基坑集水井降水时排水沟与集水坑应设置在( )
A.
基础范围以外；地下水走向的上游
B.
基础范围以外；地下水走向的下游
C.
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D.
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【单选题】The main idea of this passage is______.
A.
it is likely to make an enemy of your admirer
B.
there are many solutions to the problems of dating
C.
an admirer has feeling every bit as sensitive as our own
D.
it is possible to discourage an admirer without hurting his feelings
【单选题】It is possible _____ he misunderstood _____ I said. [ ]
A.
that, that
B.
what, what
C.
what, that
D.
that, what
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