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【简答题】
下列函数中：①y=-x 2 ；②y=2x；③y=2 2 +x 2 -x 3 ；④m=3-t-t 2 是二次函数的是______（其中x、t为自变量）．
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皮皮学刷刷变学霸
举一反三
【单选题】下列哪句诗不是苏轼写的 (1分)
A.
但愿人长久，千里共婵娟。
B.
左牵黄，右擎苍，锦帽貂裘，千骑卷平冈。
C.
醉里挑灯看剑，梦回吹角连营。
D.
十年生死两茫茫，不思量，自难忘。
【单选题】Ask not what your country can do for you. Ask what you can do for your country.
A.
rhyme
B.
metaphor
C.
hyperbole
D.
antithesis
【单选题】_______ John Kennedy put it, “Ask not what your country can do for you; ask what you can do for your country.”
A.
Which
B.
As
C.
While
D.
What
【单选题】The sentence "Ask not what your country can do for you, ask what you can do for your country" is _____.
A.
loose
B.
periodic
C.
balanced
【单选题】Ask not what your country can do for you,ask what you can do for your country.
A.
parallelism
B.
paradox
C.
oxymorn
D.
antithesis
【单选题】Suppose the state decides to randomly test high school wrestlers for steroid use. There are 16 teams in the league, and each team has 20 wrestlers. State investigators plan to test 32 of these athle...
A.
Stratified
B.
Simple Random
C.
Convenience
D.
Cluster
【单选题】下列哪句诗词不是苏轼写的( )
A.
十年生死两茫茫，不思量，自难忘。
B.
但愿人长久，千里共婵娟。
C.
衣带渐宽终不悔，为伊消得人憔悴。
D.
老夫聊发少年狂，左牵黄，右擎苍。
【多选题】And so, my fellow Americans, ask not what your country can do for you; ask what you can do for your country.
A.
antithesis
B.
regression
C.
metaphor
D.
hyperbole
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