安全隔离网闸
参考答案:
安全隔离网闸是一种由带有多种控制功能专用硬件在电路上切断网络之间的链路层连接,并能够在网络间进行安全适度的应用数据交换的网络安全设备。
—Where’s that report?—I brought it to you __________ you were in Mr. Black’s office yesterday.
A.if
B.when
C.because
D.before
I can ______ some noise while I'm studying, but I can't stand very loud noise.
[ ]
A. put up with
B. get rid of
C. have effects on
D. keep away from