A. Open all the doors in the printer.
B. Clear the print queue.
C. Turn the printer off.
D. Take the printer offline.
第1题:
健康计划的总体目标中的三个"W"指
A、who,what,when
B、what,when,why
C、who,what,which
D、what,when,where
E、when,where,which
第2题:
第3题:
exception类中有哪个函数?
A.which()
B.what()
C.when()
D.where()
第4题:
[A] who [B] when [C] where [D] which
第5题:
第6题:
4、exception类中有哪个函数?
A.which()
B.what()
C.when()
D.where()