【简答题】 Listen again and match the people in Column A with the information in Column B. (匹配踢) Column A Column B Jack wants to in...
【多选题】下列各命题, 其中正确命题的选项是 __________ . ( 写出所有正确命题的选项 ) :
【单选题】已知命题p:在△ABC中,“ ”是“ ”的充分不必要条件;命题q:“ ”是“ ”的充分不必要条件,则下列选项中正确的是( )
【简答题】给出下列命题, 其中正确命题的选项是 .(注:把所有正确命题的选项都打勾) (5.0分)A. 存在实数 a ,使 sin a • cos a = 1 B. 存在实数 a ,使 sin a +cos a = C. D. E. 若 α 、 β 是第一象限角,则 tan α > tan β
【简答题】 请选择一个单词或词组填入下列句子中 account identification passport check withdraw driver’s license deposit interest minimum transfer Sarah went to the ATM to ...
【单选题】下列选项中正确的是 [ ]
A.
命题p: ,tanx 0 =1;命题q: ,x 2 -x+1>0,则命题 是真命题
B.
集合M={x|x 2 <4},N={x|x 2 -2x-3<0},则M∩N={x|-2<x<3}
C.
命题“若x 2 -3x+2=0,则x=1”的逆否命题为“若x≠1,则x 2 -3x+2≠0”
D.
函数f(x)=x 2 +2(m-2)x+4在[1,+∞)上为增函数,则m的取值范围是m<1
【简答题】“Get your hands off me, I have been stolen,” the laptop, a portable computer, shouted. That is a new solution to laptop computer theft: a program that lets owners give their property a voice when it h...
【单选题】It struck me that we ought to make a new plan.
【简答题】'Get your hands off me; I have been stolen, 'the laptop, a portable computer, shouted. That is a new solution to laptop computer theft: a program that lets owners give their property a voice when it h...