A.An, the
B.An, an
C.The, the
D.The, an
第1题:
What operation on relations R and S produces the relation shown below?
A.Union
B.Difference
C.Intersection
D.Division
第2题:
“G’day!”是哪国人的问候方式?
A.The British
B.Americans
C.Australians
D.Canadians
第3题:
提升选择器样式重要性的代码正确的是()
A..green{ color:green!important; }
B..green{ !important color:green; }
C..green!important{ color:green!important; }
D..green{ color:green; }!important;
第4题:
When was Canada divided into Upper Canada(English-speaking)and Lower Canada(French-speaking)?()
AIn 1763
BIn 1774
CIn 1791
DIn 1840
第5题:
下面关于CSS样式优先级,正确的是
A.!important > id > class > tag
B.id> !important > class > tag
C.!important > tag > class > id
D.tag> id > class > !important
第6题:
CSS优先级说法正确的是?
A.!important > id > class > tag
B.!important < id < class < tag
C.!important>class>id>tag
D.!important>tag>id>class