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【简答题】
为什么带传动的中心距都设计成可调的? 答 : 因为带在工作过程中受变化的拉力,其长度会逐渐增加,使初拉力减小。因此需要经常调整中心距,以调整带的初拉力。因此便将中心距设计成可调的。
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举一反三
【单选题】can directly face the end consumers or users.
A.
Sales packaging
B.
Grouped packaging
C.
Transport packaging
D.
None of the above
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【单选题】The passage is mainly about______.
A.
why computer crimes arc difficult to detect by systematic inspections
B.
why computer criminals are often able to escape punishment
C.
how computer criminals manage to get good recommendation from their former employees
D.
why computer crimes can't be eliminated
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【判断题】辛味食物包括葱、姜、蒜等，擅长发散风寒、行气止痛，有助宣泄肺气，防止外邪犯肺，是肺脏的好管家
A.
正确
B.
错误
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【判断题】辛味食物包括葱、姜、蒜等,擅长发散风寒、行气止痛,有助宣泄肺气,防止外邪犯肺,是肺脏的好管家。
A.
正确
B.
错误
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【单选题】The passage is mainly about______.
A.
why computer crimes are difficult to detect by systematic inspections
B.
why computer criminals are often able to escape punishment
C.
how computer criminals manage to get good recommendations from their former employers
D.
why computer crimes can't be eliminated
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【单选题】执行下列二进制数算术加法运算10101010+00101010，其结果是（ ）。
A.
11010100
B.
11010010
C.
10101010
D.
00101010
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【多选题】Youe just configured the network interface on You？e just configured the network interface on systemA and the following information is displayed pertaining to systemA’s network interface： You have been...
A.
/etc/nodename
B.
/etc/hostname.rtls0
C.
/etc/hostname
D.
/etc/inet/hosts
E.
/etc/domainname
F.
/etc/inet/ipnodes
G.
/etc/inetd.conf
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【单选题】______ can be coupled th the propeller shaft directly.
A.
slow-speed diesel engine
B.
medium-speed diesel engine
C.
high-speed diesel engine
D.
steam turbine
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【单选题】You have just configured the network interface on systemA . The following information is From systemB， you test the network connectivity by sending ICMP ECHO_REQUEST packets to  systemA. The following...
A.
The interface is not plumbed.
B.
The interface is not configured.
C.
The interface does not have valid routes configured.
D.
The interface is not marked as
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【单选题】00101010 (^) 00010111 语句的执行结果为( )。
A.
11111111
B.
00000000
C.
11000010
D.
00111101
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相关题目：
【单选题】can directly face the end consumers or users.
A.
Sales packaging
B.
Grouped packaging
C.
Transport packaging
D.
None of the above
查看完整题目与答案
【单选题】The passage is mainly about______.
A.
why computer crimes arc difficult to detect by systematic inspections
B.
why computer criminals are often able to escape punishment
C.
how computer criminals manage to get good recommendation from their former employees
D.
why computer crimes can't be eliminated
查看完整题目与答案
【判断题】辛味食物包括葱、姜、蒜等，擅长发散风寒、行气止痛，有助宣泄肺气，防止外邪犯肺，是肺脏的好管家
A.
正确
B.
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【判断题】辛味食物包括葱、姜、蒜等,擅长发散风寒、行气止痛,有助宣泄肺气,防止外邪犯肺,是肺脏的好管家。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The passage is mainly about______.
A.
why computer crimes are difficult to detect by systematic inspections
B.
why computer criminals are often able to escape punishment
C.
how computer criminals manage to get good recommendations from their former employers
D.
why computer crimes can't be eliminated
查看完整题目与答案
【单选题】执行下列二进制数算术加法运算10101010+00101010，其结果是（ ）。
A.
11010100
B.
11010010
C.
10101010
D.
00101010
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【多选题】Youe just configured the network interface on You？e just configured the network interface on systemA and the following information is displayed pertaining to systemA’s network interface： You have been...
A.
/etc/nodename
B.
/etc/hostname.rtls0
C.
/etc/hostname
D.
/etc/inet/hosts
E.
/etc/domainname
F.
/etc/inet/ipnodes
G.
/etc/inetd.conf
查看完整题目与答案
【单选题】______ can be coupled th the propeller shaft directly.
A.
slow-speed diesel engine
B.
medium-speed diesel engine
C.
high-speed diesel engine
D.
steam turbine
查看完整题目与答案
【单选题】You have just configured the network interface on systemA . The following information is From systemB， you test the network connectivity by sending ICMP ECHO_REQUEST packets to  systemA. The following...
A.
The interface is not plumbed.
B.
The interface is not configured.
C.
The interface does not have valid routes configured.
D.
The interface is not marked as
查看完整题目与答案
【单选题】00101010 (^) 00010111 语句的执行结果为( )。
A.
11111111
B.
00000000
C.
11000010
D.
00111101
查看完整题目与答案