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【单选题】
下雨天乘坐公共交通工具时,应自备方便袋收纳雨具,不要在座椅上放置( ),以免雨水造成地面湿滑或影响他人就座。A.
厨具
B.
雨具
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皮皮学刷刷变学霸
举一反三
【单选题】Speaker A: I've got a fever and a really bad headache. Speaker B: _____
A.
Why are you so careless about yourself?.
B.
This kind of thing happens to everyone.
C.
You should take good care of yourself.
D.
Oh, that's too bad. Why don't you take some aspirin?
【单选题】There is no doubt _______ they had got the bad news. They looked so sad. [ ]
A.
if
B.
how
C.
that
D.
why
【简答题】Things got so bad (recent) ______ that he decided not to go to his office.
【单选题】Speaker A: I've got a fever and a really bad headache. Speaker B: ______.
A.
Why are you so careless about yourself?
B.
This kind of thing happens to everyone.
C.
You should take good Care of yourself.
D.
Oh, that's too bad. Why don't you take some aspirin?
【简答题】已知函数 f ( x )的定义域为［－ ， ］，求函数 g ( x )= f (3 x )＋ f ( )的定义域
【简答题】已知函数f（x）=mx 2 +nx+3m+n是偶函数，且其定义域为[m-1，2m]． （1）求m，n的值； （2）求函数f（x）在其定义域上的最大值．
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