"Whose ruler is it?" "It's ________."[ ]
A. Jim
B. Ann
C. Kate's
D. Linda
答案:C
设集合A={0,1,2,4,5,7},B={1,3,6,8,9},C={3,7,8},则集合(A∩B)∪C=( )
A、{0,1,2,4,8} B、{3,7,8}
C、{1,3,7,8} D、{1,,3,6,7,8}
交流电中线汇流排的颜色为()色。
A.绿
B.黄
C.褐或紫
D.浅蓝