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【多选题】
隔板套的作用是（）。
A.
隔板套用来固定隔板；
B.
隔板套可使级间距离不受或汽缸上抽汽口的影响，可使汽轮机的轴向尺寸相对减少；
C.
简化汽缸形状，又便于拆装，并允许隔板受热后能在径向、轴向自由膨胀；
D.
规范汽缸形状。
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举一反三
【单选题】In 1969, the first British soldiers were see on Northern Ireland street . They came first ______
A.
to maintain traffic order in Northern Ireland
B.
to protect Catholics
C.
to protect Protestants
D.
to replace the Royal Ulster Constabulary since they were unable to keep social order
查看完整题目与答案
【判断题】链传动的承载能力与链排数成反比
A.
正确
B.
错误
查看完整题目与答案
【单选题】顺序喷射燃油系统中的每一缸的喷油时刻（）
A.
进气行程下止点
B.
压缩行程下止点
C.
进气行程上止点
D.
压缩行程上止点
查看完整题目与答案
【单选题】The Open University in Britain was founded in 1969. Was it the first university in the whole world for distance education ?
A.
Yes
B.
No
查看完整题目与答案
【多选题】《神华集团公司煤炭板块安全生产重大隐患排查治理与挂牌督办管理暂行规定》中“供电系统不完善、不可靠”，指有（）下列情形之一的：
A.
矿井未形成取自不同母线段的两回路供电线路的。
B.
矿井电源线路上分接其它负荷或装设负荷定量器的。
C.
井下各水平中央变（配）电所、采区变（配）电所、主排水泵房和下山开采的采区排水泵房单回路供电的。
D.
主要通风机、提升人员的立井绞车、抽放瓦斯泵等主要设备房、向突出矿井自救系统供风的压风机、井下移动瓦斯抽放泵的两回路供电线路不是直接由变（配）电所馈出的。
E.
井下局部通风机供电未采用“双风机双电源”和“三专两闭锁”的。
查看完整题目与答案
【单选题】What CBS anchor reported the assassination of President Kennedy in 1963, the first moon landing in 1969, and the election of Ronald Reagan in 1980?
A.
Dwight D. Eisenhower
B.
Edward R. Murrow
C.
Walter Cronkite
D.
Charles Foster Kane
查看完整题目与答案
【单选题】The first subway in China was in Beijing in 1969.
A.
built
B.
building
C.
build
D.
builds
查看完整题目与答案
【简答题】A: The first person walked on Mars in 1969. B: You mean that the first person walked on the______ in 1969.
查看完整题目与答案
【单选题】In 1969, the first British soldiers were seen on the Northern street. They came first _____.
A.
to maintain traffic order in Northern Ireland
B.
to protect Catholics
C.
to protect Protestants
D.
to replace the Royal Ulster Constabulary since they were able to keep social order
查看完整题目与答案
【单选题】In 1969,the first British soldiers were seen on Northern Ireland street.They came first_____
A.
to maintain traffic order in Northern Ireland
B.
to protect Catholics
C.
to protect Protestants
D.
to replace the Royal Ulster Constabulary since they were unable to keep social order
查看完整题目与答案
相关题目：
【单选题】In 1969, the first British soldiers were see on Northern Ireland street . They came first ______
A.
to maintain traffic order in Northern Ireland
B.
to protect Catholics
C.
to protect Protestants
D.
to replace the Royal Ulster Constabulary since they were unable to keep social order
查看完整题目与答案
【判断题】链传动的承载能力与链排数成反比
A.
正确
B.
错误
查看完整题目与答案
【单选题】顺序喷射燃油系统中的每一缸的喷油时刻（）
A.
进气行程下止点
B.
压缩行程下止点
C.
进气行程上止点
D.
压缩行程上止点
查看完整题目与答案
【单选题】The Open University in Britain was founded in 1969. Was it the first university in the whole world for distance education ?
A.
Yes
B.
No
查看完整题目与答案
【多选题】《神华集团公司煤炭板块安全生产重大隐患排查治理与挂牌督办管理暂行规定》中“供电系统不完善、不可靠”，指有（）下列情形之一的：
A.
矿井未形成取自不同母线段的两回路供电线路的。
B.
矿井电源线路上分接其它负荷或装设负荷定量器的。
C.
井下各水平中央变（配）电所、采区变（配）电所、主排水泵房和下山开采的采区排水泵房单回路供电的。
D.
主要通风机、提升人员的立井绞车、抽放瓦斯泵等主要设备房、向突出矿井自救系统供风的压风机、井下移动瓦斯抽放泵的两回路供电线路不是直接由变（配）电所馈出的。
E.
井下局部通风机供电未采用“双风机双电源”和“三专两闭锁”的。
查看完整题目与答案
【单选题】What CBS anchor reported the assassination of President Kennedy in 1963, the first moon landing in 1969, and the election of Ronald Reagan in 1980?
A.
Dwight D. Eisenhower
B.
Edward R. Murrow
C.
Walter Cronkite
D.
Charles Foster Kane
查看完整题目与答案
【单选题】The first subway in China was in Beijing in 1969.
A.
built
B.
building
C.
build
D.
builds
查看完整题目与答案
【简答题】A: The first person walked on Mars in 1969. B: You mean that the first person walked on the______ in 1969.
查看完整题目与答案
【单选题】In 1969, the first British soldiers were seen on the Northern street. They came first _____.
A.
to maintain traffic order in Northern Ireland
B.
to protect Catholics
C.
to protect Protestants
D.
to replace the Royal Ulster Constabulary since they were able to keep social order
查看完整题目与答案
【单选题】In 1969,the first British soldiers were seen on Northern Ireland street.They came first_____
A.
to maintain traffic order in Northern Ireland
B.
to protect Catholics
C.
to protect Protestants
D.
to replace the Royal Ulster Constabulary since they were unable to keep social order
查看完整题目与答案