题目

Jack is kind, hard­working and intelligent.________， I can't speak too highly of him. A．As a result                       B．By the way C．As a whole                        D．All in all 答案：D 考查短语辨析。句意：杰克善良，工作努力且聪明。总之，我如何赞扬他都不为过。as a result“结果”；by the way“顺便说一下”；as a whole“总体上”；all in all“总而言之”。构成人和动物细胞的基本结构是：（　　）①细胞壁  ②细胞膜  ③细胞质  ④细胞核  ⑤染色体  ⑥线粒体．A．④⑤⑥B．②③④C．①③④D．①⑤⑥