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搜题
【单选题】
在Windows 7中,直接关闭微机电源可能产生的后果是____。
A.
可能破坏系统设置
B.
可能破坏某些程序的数据
C.
可能造成下次启动故障
D.
以上情况均可能
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举一反三
【判断题】M8034是可驱动线圈型特殊辅助继电器(可读/写)。( )
A.
正确
B.
错误
【单选题】触点型特殊辅助继电器的线圈由PLC自动驱动,用户只可使用其触点,下面属于触点型特殊辅助继电器的是 。
A.
M8011
B.
M8028
C.
M8033
D.
M8034
【单选题】触点型特殊辅助继电器的线圈由PLC自动驱动,用户只可使用其触点,下面不属于触点型特殊辅助继电器的是( )
A.
M8012
B.
M8034
C.
M8000
D.
M8002
【单选题】单项选择(每题1分) He often speaks of the trouble he _______ to help the orphan.
A.
had
B.
found
C.
made
D.
took
【判断题】Apache构建的web平台能够发布多个站点,但是这些站点必须绑定于同一个IP地址。
A.
正确
B.
错误
【单选题】触点型特殊辅助继电器的线圈由PLC自动驱动,用户只可使用其触点,下面属于触点型特殊辅助继电器的是( )。
A.
M8028
B.
M8033
C.
M8034
D.
M8011
【单选题】He was often seen _________ with charity work last year.
A.
to help
B.
helped
C.
helping
D.
help
【单选题】Not only his lesson, but also he often help others with their lessons. [      ]
A.
did he do well in
B.
he do well in
C.
does he do well in
D.
he did well in
【单选题】My friend Tom is always ready _____ others. He often teaches______ English.
A.
to help, my
B.
for help , me
C.
to help , me
D.
for help, my
【简答题】He often (help) people in his work.
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