2012年公共英语五级词汇巩固练习十七

会计考友

21. When carbon is added to iron in proper ________ the result is steel.
A) rates B) thicknesses C) proportions D) densities
' i0 s# d( z) ]" q1 M22. You should try to ________ your ambition and be more realistic.
( c7 W* M' z+ S- k2 cA) reserve B) restrain C) retain D) replace
23. Nancy is only a sort of ________ of her husband‘s opinion and has no ideas of her own. A) sample B) reproduction C) shadow D) echo
24. Now that spring is here， you can _____ these fur coats till you need them again next winter.
6 R- g. L: b, y% D% I3 J; [/ K7 TA) put over B) put away C) put off D) put down
25. There is a ________ of impatience in the tone of his voice.
A) hint B) notion C) dot D) phrase
; K. z6 C$ {/ k! V8 T/ c
' V9 ]' h; T: Z21-25 CBDBA