图所示的家用电器中,正常工作时的电功率最接近1200W的是 [ ]
A.
B.
C.
D.
答案:C
市场需求,在一定意义上即是()需求;市场对设计的需求,实际上是消费对设计的需求。
Firewall is a mechanism used by organizations to protect their LANs from the Internet.
A.reliable
B.stable
C.peaceful
D.security