He’s never been abroad before, but he talks as if he ______ to many countries around the world. A. will have been B. had been C. should have been D. would have be
中国古代许多思想家非常重视修身养性。在这一问题上，荀子说：“道虽迩，不行不至；事虽小，不为不成。”朱熹说：“论先后，知为先；论轻重，
如图所示，在直三棱柱ABC－A1B1C1中，∠ACB=90°，CB=1，CA=，AA1=，M是侧棱CC1上一点，AM⊥BA1． (1)求证AM⊥平面A1BC； (2)求二面角B―AM―C的大小．
Our surrounding(周围) is being polluted faster than nature and man’s present efforts can’t prevent it. Time is bringing us more people, and more people will bring us more industry, more cars, la
(1)本报记者田利平报道 记者在阜外北大街一幢居民楼的地下室内见到了王小草。除了11岁过春节时穿过一次新衣外，至今17岁的她穿的还是别人送的旧
【甲】世有伯乐 , 然后有千里马。千里马常有 , 而伯乐不常有。故虽有名马 , 祇辱于奴隶人之手 ,骈死于槽枥之间 , 不以千里称也。 马之千里者
The man _______in a blue jacket at the party was a doctor. A. put on B. dressed C. had on D. wore
Charles Dickens (1812-1870), the great nineteenth century English novelist, was born near Portsmouth. His father ran heavily into debt and when he was twelve, he had to go and work in a factory for
的最小正周期和最小值，并写出该函数在区间
上的单调递增区间。
