A、 3∈M
B、 1∈M
C、 4∈M
D、 -1∉M
答案:B
A、 3∈M
B、 1∈M
C、 4∈M
D、 -1∉M
答案:B
A. hers
B. she
C. her
D. herself
A. pick it up
B. put it on
C. give it out
D. take it off
A. 0
B. 1
C. -1
D. 不存在
A. 奇函数非偶函数
B. 偶函数非奇函数
C. 奇函数且偶函数
D. 非奇非偶函数
A. so
B. very
C. too
D. much
A. 3
B. 4
C. 5
D. 6
A. to
B. by
C. with
D. in
A. How slow
B. How fast
C. What a slow
D. What a fast
A. can
B. need
C. may
D. would
A. it
B. one
C. that
D. them