【简答题】单词填空。 Wang Ping was _____ (born) in1991 in Shanghai. She swims very well and now is _____ (study) in our school. She hopes to _____ (become) a number of the national team and win at the 2008 Olympic G...
【简答题】配对阅读 ( )小题1: Paul is a Chinese film director. He want to know more about world famous directors and their directing style, and learn something from them. ( )小题2: Helen has played some characte...
【简答题】根据句意,用所给单词的适当形式填空。 小题1:I didn’t want to be treated (different)from anyone else. 小题2:When she was in her (twenty), she began to study Japanese. 小题3:Compared with his twin brother, he does (well) in Eng...
【单选题】设全集U={1,2,3,4},集合A、B是U的不同子集,若A∩B={1,3},则称A,B为“理想配集”,记作(A,B),则“理想配集”(A,B)的个数为 ( )
【单选题】设全集U={0,1,2,3,4,5,6},集合A={2,3,4,6},则A在U中的补集是( )
【简答题】某通信系统采用CRC校验。要发送的数据为11010011101。采用的生成多项式为P= 。试求发送端的加在数据后面的余数。
【单选题】设全集U是实数集R,M={x|x 2 >4},N={x|x≥3或x<1}都是U的子集,则图中阴影部分所表示的集合是 [ ]
【单选题】设全集U={0,1,2,3,4,5,6,7},A={2,3,4,5,6},则集合A在U中的补集是( )
【单选题】What can be known about Maya ’ s dream?
A.
She dreams of becoming a TV hostess.
B.
She hopes to be helpful to animals.
C.
She plans to study at college.
D.
She looks forward to working with Tiffany.
【简答题】设全集为U,集合A?U、B?U,则下列关系中与A?B等价的是______.(写出你认为正确的所有序号) (1)A∩B=A;(2)A∪B=B;(3)A∩C U B=?;(4)B∩C U A=?.