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【判断题】
建筑石膏的化学分子式是α-CaSO4• 1/2 H2O。
A.
正确
B.
错误
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参考答案：
举一反三
【单选题】When a waste heat boiler is installed in the exhaust of a main propulsion diesel engine, the exhaust gas bypass would be used _____.
A.
at high loads to prevent overheating
B.
at low loads to prevent corrosion in the boiler
C.
during periods of high steam demand
D.
when the turbocharger is in operation
查看完整题目与答案
【单选题】When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（...
A.
During operation at low speed
B.
During operation at rated speed, but low power output
C.
During acceleration
D.
All of the above
查看完整题目与答案
【简答题】设有40件产品,其中有4件次品,从中不放回的任取10次,每次取1件,则最后一件取得为次品的概率为
查看完整题目与答案
【单选题】某新媒体公司通过手机APP提供新闻资讯服务，采用阿里云弹性伸缩（Auto Scaling）来实现动态添加或者减少云服务器ECS实例，来应对业务量的变化。该公司的业务人员和技术人员相互配合，估算出他们所需要的资源为闲时10台ECS，但是有几个时间段业务量会比较多，基本上集中在7:30到9:00，18:30到20:00，随着时间点的不同，所需的ECS实例在10到20个之间动态变化。他们在伸缩组中将最小...
A.
动态模式
B.
定时模式
C.
固定数量模式
D.
lazy模式
查看完整题目与答案
【单选题】A ____arrangement permits steam generation either by oil firing when the exhaust gas temperature falls due to slow running of the engines or exhaust gas cease when the engines are stopped or by using ...
A.
water tube boiler
B.
fire tube boiler
C.
composite boiler
D.
auxiliary boiler
查看完整题目与答案
【单选题】When a waste heat boiler is installed in the exhaust of a main propulsion diesel engine, the exhaust gas bypass would be used _____.(与0805题重复)
A.
at high loads to prevent overheating
B.
at low loads to prevent corrosion in the boiler
C.
during periods of high steam demand
D.
when the turbocharger is in operation
查看完整题目与答案
【简答题】设有40件产品,其中有4件次品,从中不放回的任取10次,每次取一件,则最后一件取得为次品的概率是____.
查看完整题目与答案
【单选题】Cross scavenging requires the fitting of （） to prevent air or exhaust gas escape when the piston is at the top of the stroke.
A.
a exhaust valve
B.
a piston skirt
C.
a piston crown
D.
an air suction valve
查看完整题目与答案
【单选题】关于致意的礼仪规范描述错误的是（ ）。
A.
如果头戴的是无檐帽不必脱帽致意
B.
举手致意适合于距离较远的情况
C.
女士无论什么场合，年龄大小，不论是否戴帽，只需点头致意或微笑致意
D.
微笑致意适合于长辈、领导或会议等人较多的场合
查看完整题目与答案
【单选题】设有40件产品,其中有4件次品,从中不放回的任取10次,每次取一件,则最后一件取得为次品的概率是 .
A.
1/8
B.
1/9
C.
1/10
D.
1/11
查看完整题目与答案
相关题目：
【单选题】When a waste heat boiler is installed in the exhaust of a main propulsion diesel engine, the exhaust gas bypass would be used _____.
A.
at high loads to prevent overheating
B.
at low loads to prevent corrosion in the boiler
C.
during periods of high steam demand
D.
when the turbocharger is in operation
查看完整题目与答案
【单选题】When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（...
A.
During operation at low speed
B.
During operation at rated speed, but low power output
C.
During acceleration
D.
All of the above
查看完整题目与答案
【简答题】设有40件产品,其中有4件次品,从中不放回的任取10次,每次取1件,则最后一件取得为次品的概率为
查看完整题目与答案
【单选题】某新媒体公司通过手机APP提供新闻资讯服务，采用阿里云弹性伸缩（Auto Scaling）来实现动态添加或者减少云服务器ECS实例，来应对业务量的变化。该公司的业务人员和技术人员相互配合，估算出他们所需要的资源为闲时10台ECS，但是有几个时间段业务量会比较多，基本上集中在7:30到9:00，18:30到20:00，随着时间点的不同，所需的ECS实例在10到20个之间动态变化。他们在伸缩组中将最小...
A.
动态模式
B.
定时模式
C.
固定数量模式
D.
lazy模式
查看完整题目与答案
【单选题】A ____arrangement permits steam generation either by oil firing when the exhaust gas temperature falls due to slow running of the engines or exhaust gas cease when the engines are stopped or by using ...
A.
water tube boiler
B.
fire tube boiler
C.
composite boiler
D.
auxiliary boiler
查看完整题目与答案
【单选题】When a waste heat boiler is installed in the exhaust of a main propulsion diesel engine, the exhaust gas bypass would be used _____.(与0805题重复)
A.
at high loads to prevent overheating
B.
at low loads to prevent corrosion in the boiler
C.
during periods of high steam demand
D.
when the turbocharger is in operation
查看完整题目与答案
【简答题】设有40件产品,其中有4件次品,从中不放回的任取10次,每次取一件,则最后一件取得为次品的概率是____.
查看完整题目与答案
【单选题】Cross scavenging requires the fitting of （） to prevent air or exhaust gas escape when the piston is at the top of the stroke.
A.
a exhaust valve
B.
a piston skirt
C.
a piston crown
D.
an air suction valve
查看完整题目与答案
【单选题】关于致意的礼仪规范描述错误的是（ ）。
A.
如果头戴的是无檐帽不必脱帽致意
B.
举手致意适合于距离较远的情况
C.
女士无论什么场合，年龄大小，不论是否戴帽，只需点头致意或微笑致意
D.
微笑致意适合于长辈、领导或会议等人较多的场合
查看完整题目与答案
【单选题】设有40件产品,其中有4件次品,从中不放回的任取10次,每次取一件,则最后一件取得为次品的概率是 .
A.
1/8
B.
1/9
C.
1/10
D.
1/11
查看完整题目与答案
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