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【单选题】
某弱酸性药物在 pH=7.0 溶液中 90% 解离,其 pKa 值约为:A.
6
B.
5
C.
7
D.
8
E.
9
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反馈参考答案：
举一反三
【判断题】Less well-known are the Japanese chemical and biological warfare experiments on Chinese prisoners of war, which took place on mainland China from 1932 to 1945. These experiments did not gain much noto...
A.
正确
B.
错误
【单选题】If an argument is about industrial output in China but the data used to support the argument comes from Brazil, then the argument could said to be lacking in _________?
A.
Depth
B.
Accuracy
C.
Breadth
D.
Logic
【单选题】Data from China, the UK and the U.S. all showed that the _______ speed and profit rate of international e-commerce were higher than that of domestic e-commerce.
A.
developing
B.
developed
C.
super
D.
multinational
【单选题】What’s the meaning of “death rate” and “triple” in “Also, some of the data from China shows that for patients older than 70, the death rate triples.”?
A.
死亡率;增至三倍
B.
死亡人数;使成三倍
C.
死亡;增至两倍
【简答题】Reporter: China has delivered several decades of double-digit growth and recently 1 Japan to become the world's second largest economy. Can China sustain this performance? How is it possible to sust...
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