The players are playing ____ football.[ ]
A. a
B. an
C. the
D. /
答案:D
We have PE lessons ______ every Tuesday and Friday. [ ]
A. /
B. on
C. in
D. at
设有说明语句:int k=1,m=2;double d=7.3;,以下表达式中错误的是()。
A.k>=m=k
B.k++
C.k%(int)d
D.d>m>k