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- 1the building behind the library is the office building.对behind the libaary 提问
- 2空虚和索取二词的反义词
- 3一年四个季节是哪几个月
- 4I get up at five to seven in the morning every day .
- 5已知椭圆x^2/4+y^2/3=1,试确定m的值,使得在此椭圆上存在不同两点关于直线y=4x+m对称
- 6下列细胞结构中,不具有双层膜的是( ) A.细胞核膜和线粒体膜 B.叶绿体膜和细胞核膜 C.内质网膜和高尔基体膜 D.叶绿体膜和线粒体膜
- 7it is good _______ my healthy?
- 8描写自然界声音的象声词,例:哗哗(雨声)有几个
- 9已知实数a,b分别满足a^2+2a=2,b^2+2b=2,求(b/a)+(a/b)的值
- 10落花生小练笔200字