A、close
B、to close
C、closing
D、closed
第1题:
A.should
B.have to
C.must
D.would
第2题:
“You ____ have a wrong number,” she said. “There’s no one of that name here.”
A. need
B. can
C. must
D. would
第3题:
Me,you是两个初始集合,则下列关于派生集合定义方式正确的是
A.link/me,you/:a;
B.link(me,you):a;
C.link/me you/a;
D.link(me,you)/a;
第4题:
A.CY-CY
B.CY-DOOR
C.DOOR-CY
D.DOOR-DOOR
第5题:
49.—What about some drinks?
—__________.
A. Help, yourself
B. Good idea
C. You're welcome
D. Me,too
第6题:
me是一个包含3个成员属性为a的集合,you是一个包含2个成员属性为b的集合,则要定义一个2行3列的矩阵所对应的派生集合方法中正确的是
A.ps(me,you):c;
B.ps(you,me):c;
C.ps(a,b):c;
D.ps(b,a):c;