题目

Some new degree courses will be carried out        the current ones,so that students can gain success more easily. A.in respect to                                              B.in terms of C.in contrary to                                            D.in parallel to 答案:D 【解析】 【分析】 【详解】 考查介词短语辨析。句意:一些新的学位课程将与现有的课程同步进行,这样学生就可以更容易地获得成功。A. in respect to 关于; B. in terms of 在……方面;从……角度看;根据……来说; C. in contrary to 与……形成对照;D. in parallel to 与……同步。根据句意此处用固定短语i如图,在RtΔABC中,∠BAC=90°,DB⊥BC,DA=DB,点E是BC的中点,DE与AB相交于点G.(1)求证DE⊥AB;(2)如果∠FCB=∠FBC=∠DAB,设DF与BC交于点H,求证:DH=FH.  
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