In aerospace devices the weight of the necessary power producing equipment is _____.

　　A. vital    B. possible    C. capable    D. reliable

He didn't _____ what I read because his mind was on something else.

　　A. hold on    B. catch on    C. take in    D. get over

 Our Party has always devoted great attention to raising the living _____ of the working people.

　　A. cost    B. situation    C. level    D. standard

 The storm sweeping over this area now is sure to cause _____ of vegetables in the coming days.

　　A. rarity   B. scarcity  C. invalidity  D. variety

Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store.

　　A. anyone    B. the others    C. that    D. the ones

There are three basic ways of _____ language to writing, and all known graphic systems use one or a combination of these.

　　A. committing  B. attaching  C. comparing  D. relating

High interest rates _____ people from borrowing money.

　　A. discourage   B. decrease   C. disturb   D. disgust

. The conference gives a chance for people of different _________ to exchange.

       A. points            B. thoughts               C. views                D. ways

 I think it ________ to let farmers have their own land. In that way, they can farm the land

 by themselves, and food production will be higher.

       A. no good             B. makes sense       C. talks sense         D. usefulness

 The population of many Chinese cities has _________ doubled in the past 30 years.

       A. larger than        B. more than            C. as great as             D. quite a bit