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已知集合eqIdfc4386f0d536436cb737398894024cf6eqIdcc058dfc7b0f4b82aa57b5dc3da25cfb,则集合eqIdcfb073d9fa8a44179cf4e242d45e6d3c(  )
A.eqIda92273b0595c45f5b467b056949b6ce3B.eqId57a3b52aa79f48e9a5f5a2917424e386
C.eqId068a4fc8d3494886abe06f1dbcff2647D.eqIdd74bef4a92814cc6a72846114e9b31bb
更新:2019/6/13难度系数:0.85题型:单选题组卷:77次
已知集合eqId44975004199c47babbbd9609b7d3d475eqIdfa1c6aa8898d41109b42c3425ad83785,则集合eqId8594dd00d252445d82d1be53a59c50aa中元素的个数为_____.
更新:2019/6/13难度系数:0.85题型:填空题组卷:24次
已知函数eqId3093f80da3604757897833c781dbce4aeqId7b5559fa52604169ac0cb99796b61142表示不超过x的最大整数),若eqId8627f7d43e6c4f889caf76aef591d7af有且仅有3个零点,则实数a的取值范围是(  )
A.eqIdce7c72c8d0e7490ca157454989d99dfaB.eqId51250bec10eb4e03b9cef49d576aa146C.eqId21fca362063e45a7b40d9e790edf253fD.eqId9999c53612cc4660863aca42a22f0c0d
更新:2019/6/12难度系数:0.65题型:单选题组卷:103次
设函数eqIdd0e9557bc23e475fb444977e6cfdf5ad,则eqId0546991bd9ca475c81bc1df2ffd42f4b(  )
A.9B.11C.13D.15
更新:2019/6/12难度系数:0.85题型:单选题组卷:298次
已知定义在R上的函数eqId4837c94ef0ff4dcf9b1dda4df363275a在区间eqId09424898f96049c987e63d13dae5f1f7上单调递增,且eqId38a87f08eee244469e7a451f147b382f的图象关于eqId5db4a4f976ba42089c0439595abeb40b对称,若实数a满足eqIdaca675e292aa48c1ae431b1458622a32,则a的取值范围是(  )
A.eqId95f3d47bad1946aca2b6e76944348fe7B.eqIdbfb768c959f14fc6978c8f2fc07f733bC.eqId4dbd5af224d6415c88de4e5f3ac825b2D.eqId4994b867e2ec4539831e6c8ab671e779
更新:2019/6/12难度系数:0.65题型:单选题组卷:299次
设全集U=R,集合eqId9fb2dc02f1434a519f143bcc893abf09,则eqIddcecc20a021f45bf9fc5d53295114a8e(  )
A.eqId55c1c8d277914621b117cb963bfff120B.eqIdcdc8107b946b43a99a0b06733fff892cC.eqId83bb9a9f163d4c189cb4212768885d1cD.eqIde6649270dbe1495097874dd7f6929fe9
更新:2019/6/12难度系数:0.94题型:单选题组卷:116次
已知函数eqId6e368b541f0b4c2694efb471b2944544,当eqIdabc83049630440938d390c2194c0c9d9时,方程eqId964f3e1961fb47ceaa82f8a334e81cea有4个不相等的实数根,则eqId70a27b6ddf6b478285353abb3b1f3741的取值范围是(  )
A.eqId197dc900fb034a33a8d4d54c1004cd0eB.eqId96e41017eda143599b24fe0d213faf41
C.eqIda0fde40d55c14dee9f38cbc011b1e50eD.eqId079b4273289e463c9c6d0c7cd480be8e
更新:2019/6/12难度系数:0.65题型:单选题组卷:92次
已知正实数eqId70a27b6ddf6b478285353abb3b1f3741eqIde3ff50261b3b48789d45dd3876c7571beqIde35f447365484e7f891dc56884132698满足eqId7802aecb2843433083227fa55bef3c68,则(  )
A.eqId604bd8a4f63149b88c5b8afde46ed88eB.eqIdecc707aba3694439a35b0982eba4741bC.eqId65af10f1205847b3b6aa2d6df7b3536eD.eqIdec2c77c882354615b183d621604f562f
更新:2019/6/12难度系数:0.94题型:单选题组卷:102次
已知集合eqIdbe08bff00fb84c479ae428186e252174,集合eqId4e7f2fbe1bb2404886cd881095971bf6,则eqId43332ee5d620449ca02db9f897200abb(  )
A.eqId74c19d26c3b84210b9fae81202490390B.eqId4b62e75539a74974a263d9d1da9bbbb1C.eqId6544ba9f80b94782a3bc3b7a2d772761D.eqIdad3cb384415a46a5a2db95f26ba25b52
更新:2019/6/12难度系数:0.94题型:单选题组卷:141次
函数eqId24f583a355b8473ab7f8966ef4ae83c5为奇函数,则实数eqId94761669180d40cdb23156ff15a635ee__________.
更新:2019/6/12难度系数:0.65题型:填空题组卷:196次
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