鸡兔同笼,从上面数8个头,从下面数22只脚,鸡有[ ]
A.3只
B.5只
C.6只
答案:B
I think you'd better _____ there. [ ]
A. not to go
B. not go
C. not go to
D. not going
下列各项中,不是用来描述个性的词是()。
A.自私自利
B.心胸狭窄
C.宽容大度
D.相貌出众