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【单选题】
若函数f(x)在R上是减函数,则有f(1) f(3)A.
>
B.
<< /div>
C.
=
D.
不确定
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【简答题】He is not much of a talker; a ______ sentence for him is "Urn", his standard reply to most questions. (long)
【单选题】George Bernard Shaw's reply to this question shows ______.
A.
he is cheerful
B.
he is capable
C.
he is humorous
D.
he is polite
【单选题】When he was asked how many letters he received yesterday, his reply was_______.
A.
No one
B.
None
C.
Nothing
D.
Not many ones
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