3.如果是定义在R上的偶函数,它在上是减函数,那么下述式子中正确的是
A. B.
C. D.以上关系均不确定
2.函数的递减区间为
A.(1,+) B.(-,] C.(,+) D.(-,]
1.若关于的不等式对任意恒成立,则实数的取值范围是
A. B. C. D.
1 you how milk often do drink
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2 food to me good exercise and help better study
___________________________________________________.
3 tennis hardly they play can
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4. you she think has lifestyle do healthy a
__________________________________________________?
[我的收获-我快乐]_________________________________________
______________________________________________________________________
[我的不足-我改正] 你有做错的题吗?请你记录下来并更正到错题记录本!
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4. He ___in the classroom at the moment.
A. maybe B. may be C. stay D. stayed
3. Pass me my glasses, Tom. I can ____see the picture.
A. hardly B. really C. rather D. almost
2. ____Laura is a little child, she knows a lot of knowledge.
A. Although B. But C. Because D. Almost
1. --Why not ____music club?
--I’m sorry. I can’t sing or dance.
A. to join B. join C. joining D. to join in
2. 大量的蔬菜帮助你保持健康。________________________________________.
[达标测评]
1. 做眼保健操对你的眼睛有好处。______________________________________.