题型:完形填空 Her 1 name is Mary. Her 2 name is Brown. 3 is 13. She 4 in Class Three, Grade One. 5 telephone number is 3261058. 小题1:A.first B.family C.last小题2:A.first B.family C.English小题3:A.Her B.It C.She小题4:A.is B.am C.are小题5:A.Her B.She C.His 查看答案
题型:选择题 在R上定义运算*:x*y=x•(1-y).若关于x的不等式x*(x-a)>0的解集是集合{x|-1≤x≤1}的子集,则实数a的取值范围是( )A.[0,2]B.[-2,-1)∪(-1,0]C.[0,1)∪(1,2]D.[-2,0] 查看答案