[单选题]若非零向量满足||=||,(2+)·=0,则与的夹角为A.30°B.60°C.120°D.150°
[单选题]_____ miss the early bus, Jack got up at 5:50 that morning. [ ]A. So as not to B. In order thatC. In order to D. In order not to
[单选题]— Some Chinese students find it hard to get used to the life in London.— Exactly, ______ theyve learnt a lot about the city before.?[ ]A. if B. now thatC. as thoughD. even though
[单选题]The patient’s progress was very encouraging as he could ________ get out of bed without help.A.nearlyB.hardlyC.merelyD.barely
[计算题]如图, 在正方体ABCD—A1B1C1D1中,E、F分别是CC1、AA1的中点.AA1=2.(1)求异面直线AE与BF所成角的余弦值;(2)求点F到平面ABC1D1的距离;
[单选题]已知点A.1,-2,11),B(4,2,3),C(6,-1,4),则△ABC的形状是[ ]A.等边三角形B.直角三角形 C.等腰三角形 D.等腰直角三角形
[单选题]Painting from still images leads to a loss of sensitivity, which is _____ to an artist.A.absoluteB.urgentCespecial D.vital
[单选题]_____ you have seen both fighters, _____ will winA. Since; do you think who B. As; who you think C. When; whoever D. Since; who do you think
[单选题]More money will be to enjoy more convenience. [ ]A. bound B. beneficialC. dueD. determined
[单选题]The most perceptive of the three, she was the first to realize the___ danger of their situation. ( )A. obviousB. easy C. potential D. necessary
[单选题]Strangely, the two men look ________ alike that nearly all the people think they are twin brothers.[ ]A. too muchB. such muchC. much tooD. so much
[单选题]A. the story develops, the young woman has now got a ______ job in a library after several part-time jobs. [ ]A. preciousB. specialC. specific D. stable
[单选题]Mr. Johnson is _____ a teacher. He is also our good friend. [ ]A. onlyB. more thanC. hardlyD. less than
[单选题]— Im going to have lunch. Do you mind talking about your plan ____ lunch — A.l right. Ill wait here in the office.[ ]A. afterB. beforeC. overD. until
[单选题]There is little time left, so Ill tell you about it ______. ( )A. in detailB. in briefC. in general D. in all
[单选题]The final score of the basketball match was 93-94. We were only _____ beaten.A.nearlyB.narrowlyC.slightly D.lightly
[单选题]已知AB=(5,-3),C(-1,3),CD=2AB,则点D的坐标为A.(11,9) B.(4,0)C.(9, 3) D.(9,-3)
[单选题]The tour was fantastic in general, our car broke down on the way back.A.as B.though C.whether D.since
[单选题]设A.B.C.D是平面直角坐标系中不同的四点,若AC=AAB(A∈R)2AD=AB(∈R)2且×√,则称CD是关于A B的“好点对”.已知M N是关于A B的“好点对”, 则下面说法正确的是( )A.M可能是线段AB的中点B.M N可能同时在线段BA延长线上C.M N可能同时在线段AB上D.M N不可能同时在线段AB的延长线上
[单选题]To keep safe ____ an earthquake, you should remain at a spot in your room where nothing may fall on you. [ ]A. in search of B. in advance of C. in terms of D. in case of
[单选题]_______ for the new US president, the crisis was already upon them.[ ]A. LuckilyB. UnfortunatelyC. ObviouslyD. Absolutely