高考英语词汇每日一练 第270期
日期:2014-02-10 16:15
(单词翻译:单击)
真题练习
539.Leaves are found on all kinds of trees,but they differ greatly __________ size and shape.
A.on
B.from
C.by
D.in
540.Scientists are convinced _______ the positive effect of laughter _____ physical and mental health.
A.of;at
B.by;in
C.of;on
D.on;at
答案解析
539.答案是D;differ in 在…方面不同；differ from 与…不同。
540.答案是C;be convinced of sth.坚信;the effect on sth.对于…的影响。
