[单选题]已知向量m=(1,1),n=(1,t),若m·n=3,则向量m与向量n夹角的余弦值为( )A、B、C、D、
[单选题]Your natural hair color begins to fade________you grow older, and in time you grow grey. [ ]A.sinceB.whenC.whileD.as
[单选题]Deeds are better than words when people are _____ of help. ( )A. in need B. in factC. in danger D. in return
[单选题]设向量a=(-1,2),b=(1,-1),c=(3,-2),用a,b作基底可将c表示为c=pa+qb,则实数p,q的值为( ).A.p=4,q=1 B.p=1,q=4C.p=0,q=4 D.p=1,q=-4
[单选题]Compared with his sister, Jerry is even more ________ to, and more easily troubled by, emotional and relationship problems.A.skepticalB.addictedC.availableD.sensitive
[单选题]In the new season, the Lakers ____ beat the Rockets 12-110 in last nights thrilling game with Yao Ming scoring 9 points.[ ]A. narrowlyB. preciselyC. widelyD. automatically
[单选题]The businessman is very modest about his success. He says its _____ the result of good luck as of his own diligence. [ ]A. more than B. so much C. moreD. as much
[单选题]A.e you _____ of the mistakes you made in your final English test? [ ]A. awaredB. unforgettable C. awaring D. aware
[单选题]A.l the photographs in this book, _______ stated otherwise, date from the 1950s.[ ]A. unlessB. untilC. onceD. if
[单选题]The shop _____until 7 oclock.[ ]A. stays opened B. continues openC. stays open D. continues opened
[单选题]When asked about their opinion about the schoolmaster, many teachers would prefer to see him step aside _________younger men.[ ]A. in terms ofB. in need of C. in favor ofD. in praise of
[单选题]When we plan our vacation, mother often offers ______suggestions.[ ]A. careful B. practical C. effective D. acceptable
[单选题]He tried to be ______, but his trembling hands gave him away.[ ]A. calmB. still C. silent D. quiet
[单选题]_____ others might have been satisfied, Johnson has higher ambitions.A.WhatB.WhichC.AsD.where
[单选题]-Why didnt Ted go to our party_____ his heavy cold. [ ]A. BecauseB. Because of C. Because he was D. For he was
[单选题]Rich and famous as he is, he lives in a ________ house in the village. [ ]A.modestB.limitedC.slightD.reserved
[单选题]The coat you wear now is the same________I bought yesterday.[ ]A. likeB. thatC. which D. as
[单选题]John thinks it won’t be long __________ he is ready for his new job.A.whenB.afterC.beforeD.since
[单选题]By law,when one makes a large purchase,he should have ________opportunities to change his mind.[ ]A. accurateB. annualC. actualD. adequate
[单选题]Weve got a general idea of what we want, but nothing ______at the moment. ( )A. common B. permanentC. complete D. concrete
[单选题]Nowadays more people are advised to arrange for insurance ______ they need medical care. [ ]A. in orderB. in needC. in caseD. in hope