Just look at the room. My roommate ____ up his clothes. A．is never hanging B. will never hang C. never hangs D. never hanged
如图，一次函数y＝kx＋b的图象与x轴、y轴分别相交于A，B两点，⊙O经过A，B两点，已知AB＝2，则的值为________．
_________ the train, please! The train is leaving at once. A. Get on B. Get off C. Get in
蛔虫是人体寄生虫，它寄生在( ) A.人的大肠内 B.人的胃里 C.人的小肠内 D.人的肛门里
某班一次数学测试成绩的茎叶图（茎上数代表十位，叶上数代表个位）如图1所示． （1）以10为组距，在图2给定的坐标系中画出该班成绩的频率分布直
The secretary has a lot of things to ______ in the office since she has been away for quite a few days. A. take up B. make up C. work out D. carry out
15．阅读下面的文字，完成小题。杂交水稻之父1982年的一个秋日，马尼拉洛斯巴洛斯镇国际水稻研究所的学术报告厅里，正在举行国际水稻科技界的一
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＝－4，移项得x＝5－4， x＝1. 解析: