给水泵系统的管线用（）来表示。
A.K
B.S
C.J
D.W
参考答案：C
以下日期值正确的是______。
A) "2001-05-25" B) ^2001-05-25C) 2001-05-25 D) [2001-02-25]
My suggestion is that Tom ______ there on time.[ ]
A. is
B. be
C. will be
D. has been
