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【简答题】
K a1 θ （H 2 S）=1.32×10 -7 ，K a2 θ （H 2 S）=1.10×10 -14 。则0.10 mol.L -1 Na 2 S溶液的c（OH - ）=（）mol.L -1 ，pH=（）。
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举一反三
【单选题】The 'fact' in Paragraph 2 refers to（ ）
A.
her admiration for the men in the ads
B.
her mother's warning that smokers don't grow tall
C.
her height of 5'6'
D.
the teachers' negative attitude towards smoking
【简答题】Americans often make jokes about women talking too much, but in fact, men ______.
【单选题】If a port is in fact unsafe，it ______ irrelevant that well-informed men might have erroneously pronounced it to be safe．
A.
provides
B.
has
C.
contains
D.
is
【单选题】What is the most obvious difference between men and women shoppers?
A.
The fact that men do not try clothes on in a shop.
B.
Women bargain (讨价还价) for their clothes, but men do not.
C.
Women stand in a shop, but men sit down.
D.
The time they take to buy clothes.
【单选题】What is the most obvious difference between men and women shoppers?
A.
The fact that men do not try clothes on in a shop.
B.
Women bargain (计价还价) for their clothes, but men do not.
C.
Women stand in a shop, but men sit down.
D.
The time they take to buy clothes.
【单选题】_____ the fact that there was great prejudice against women entering men's profession then, she succeeded as a manager of a big company. [ ]
A.
While
B.
In spite of
C.
Despite of
D.
As
【简答题】A．Women bargain for their clothes, but men do not. B．The fact that men do not try clothes on in a shop. C．The time they spend buying clothes. D．Women never take advice, but men do.
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