皮皮学，免费搜题
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【单选题】
下列结论中正确的是 ( )A.
y=sinx和y=cosx都是偶函数
B.
y=sinx和y=cosx在[0 , ]都是增函数
C.
y=sinx和y=cosx都是周期函数
D.
y=sinx和y=cosx在x =2kπ (k∈Z)时有最大值1
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【简答题】I ________ you not to move my dictionary, now I can’t find it. A. asked B. ask C. was asking D. had asked
【简答题】第二十二回，制灯谜贾政悲谶语。其中探春制的灯谜是：阶下儿童仰面时，清明妆点最堪宜。游丝一断浑无力，莫向东风怨别离。打一物，谜底是( ) A镜子 B更香 C竹夫人 D风筝
【单选题】— Can you lend me your English-Chinese dictionary? — I'm sorry I have _____ dictionary. You'd better go to the library. [ ]
A.
not such
B.
not such a
C.
not a such
D.
no such a
【单选题】—Excuse me, may I use your dictionary? —Sorry, I have no dictionary. —_______________. [ ]
A.
That's right
B.
Thank you all the same
C.
You can buy one