单词拼写(共10小题,满分5分) This v________ became active last year with a series of eruption. Motorists are warned to slow down and take extra care in f _______ conditions. How can a responsi
-----My dear girlfriend left me forever. ------Left you, did she? _______. You have been so selfish and rude. A. You must be kidding B. It serves you right C. It’s not my concern
△ABC的内角A、B、C的对边分别为a、b、c. 若a、b、c成等比数列,且c=2a,则cosB= (A) (B) (C) (D)
阅读下列材料,然后回答问题。(9分)材料一:“我要说,我们的政治制度,不是从我邻人的制度中模仿得来的。我们的制度是别人的模范,而不是我
中共八大决定的党和人民的主要任务是:A. 加快社会主义改造 B.发展社会生产力 C.开展阶级斗争 D
苏轼《水调歌头•明月几时有》一词中“此事古难全”里的“此事”是指: , 。
如图,△ABC内接于⊙O,其外角平分线AD交⊙O于DM⊥AC于M,下列结论:①DB=DC;②AC-AB=2AM;③AC+AB=2CM;④=2其中正确的有( )A.只有④② B.只有①②
_______he won't go there is clear to all of us. A. How B. What C. Why D. This