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【单选题】
A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler ______.A.
corrosion at low engine loads
B.
erosion at high engine loads
C.
overload at high engine loads
D.
scaling at all exhaust temperatures
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举一反三
【单选题】配置路由器远程登录Telnet的密码,应在全局模式下输入的命令是
A.
line console 0
B.
line vty 0 4
C.
int f0/0
D.
int f0/1
【单选题】— Does your Dad quit smoking, Jenny? — Yes, but he ____ for almost ten years. [ ]
A.
smoked
B.
was smoking
C.
has smoked
D.
had smoked
【单选题】配置telnet的远程登录密码,在全局模式下输入的命令是()
A.
line console
B.
Line vty 0 5
C.
Int fa0/0
D.
Int s0/0
【简答题】干粉灭火器的使用步骤可以概括为：、 、按手按柄。
【单选题】After a smoker finally quits smoking, he ______.
A.
needs counseling for getting rid of smoking urges
B.
is completely and happily satisfied with his success
C.
has to adapt himself to a new life free from nicotine
D.
comprehends what a nonsmoker really means to him
【单选题】—Does your father smoke? — ,it's 2 years since he ．
A.
Yes; smoked
B.
No; smoked
C.
Yes; smokes
D.
No; has smoked
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