某国税局食堂职工小王欲解除劳动合同，他应该提前（）日书面通知该局。
A.5
B.10
C.15
D.30
参考答案：D
John is a careful driver and he drives _______ of my friends. [ ]
A. more carefully
B. the most carefully
C. less carefully
D. the least carefully
以下术语跟网络打印机有关的有（）。
A.打印优先级
B.打印池
C.打印端口
D.共享权限
