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【单选题】
相同物质的量浓度的下列化合物的水溶液，按pH减小顺序排列提（ ）A.
NaHSO 4 ，CH 2 COONa，NH 4 Cl，NaNO 3
B.
NaNO 3 ，CH 3 COONa，NaHSO 4 ，NH 4 Cl
C.
CH 3 COONa，NaNO 3 ，NH 4 Cl，NaHSO 4
D.
NaNO 3 ，CH 3 COONa，NH 4 Cl，NaHSO 4
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【单选题】Which of the following best supports the assumption that animals have emotions?
A.
What happens in their heads and hearts.
B.
How they interact with friends and foes.
C.
The odors they emit when heing with friends.
D.
The expression in their eyes while interacting with others.
【单选题】What example is mentioned in paragraph 9?
A.
Sir Daniel's example
B.
Sgt. Russell's example
【简答题】中药材经不同方法炮制，功效会发生很大改变，说出黄芩的炮制品种有哪些？比较说明各个炮制品之间的功效有何区别？
【简答题】What is mentioned as an example of important matters? __________ affairs.
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