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【判断题】
某新建项目实体结构混凝土强度等级设计要求C30，采用42.5普通硅酸盐水泥、粒径5-40㎜碎石、中砂。根据技术要求给定该项目C30混凝土配合比为：42.5普通硅酸盐水泥320kg、中砂1.01m³、碎石0.88m³。根据该企业有关施工资料统计得知，现浇实体混凝土材料的工艺损耗率为1.2％，水泥的管理损耗率为1.3％，黄砂管理损耗率为1.5％，碎石管理损耗率为3％。 请根据背景资料完成相应选项。 用于检查该工程结构构件C30混凝土强度的试件，混凝土的浇筑地点随机抽取。
A.
正确
B.
错误
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参考答案：
举一反三
【单选题】关于变速器rattle的说法正确的是（）
A.
rattle的引起来源只与变速器有关
B.
rattle是离合器导致的
C.
rattle是发动机扭矩波动引起的，但是与变速器齿轮加工工艺及控制同样相关
D.
rattle与发动机无关联
查看完整题目与答案
【单选题】在目前我国社会就业压力大的形势下,正确的择业与求职态度应该是( )
A.
找个好单位,干上一辈子
B.
寻求外资企业中的好岗位
C.
先就业、后择业、再发展
D.
等到就业形势好转以后再看
查看完整题目与答案
【简答题】The author uses the example of rattle to show that ________. A) in toy- there is a continuity in the sue of materials B) even the st toys can reflect the progress of technology C) even the...
查看完整题目与答案
【单选题】The author uses the example of a rattle to show that ______.
A.
in toy-making there is a continuity in the use of materials
B.
it often takes a long time to introduce new technology into toy-making
C.
even the simplest toys can reflect the progress of technology
D.
even a simple toy can mirror the artistic tastes of the time
查看完整题目与答案
【单选题】“Geili”, created from the two Chinese characters “gei” and “li”, _______ a word only spoken in some dialects, but now it _______ something cool or exciting all over the country.
A.
is used to being; used to describe
B.
used to be; used to describing
C.
is used to be; used to describing
D.
used to be; is used to describe
查看完整题目与答案
【单选题】The author uses the example of a rattle to show that ______.
A.
in toy-making there is a continuity in the use of materials
B.
even the simplest toys can reflect the progress of technology
C.
it often takes a long time to introduce new technology into toy-making
D.
even a simple toy can mirror the artistic tastes of the times.
查看完整题目与答案
【判断题】加载rattle包的命令是:library(rattle)
A.
正确
B.
错误
查看完整题目与答案
【单选题】在目前我国社会就业压力大的形势下,正确的择业与求职态度应该是( )。
A.
找个好单位，干上一辈子
B.
寻求外资企业中的好岗位
C.
先就业或择业，再发展
D.
等到就业形势好转以后再看
查看完整题目与答案
【判断题】安装rattle包的命令是:install.packages("rattle")
A.
正确
B.
错误
查看完整题目与答案
【单选题】How do naturalists regard the rattle of the rattlesnake?
A.
They believe that the snake is able to control the rattle.
B.
They believe that the snake is unaware of its rattle.
C.
They believe that the rattle is a nervous action.
D.
They believe that the rattle is a deliberate warning.
查看完整题目与答案
相关题目：
【单选题】关于变速器rattle的说法正确的是（）
A.
rattle的引起来源只与变速器有关
B.
rattle是离合器导致的
C.
rattle是发动机扭矩波动引起的，但是与变速器齿轮加工工艺及控制同样相关
D.
rattle与发动机无关联
查看完整题目与答案
【单选题】在目前我国社会就业压力大的形势下,正确的择业与求职态度应该是( )
A.
找个好单位,干上一辈子
B.
寻求外资企业中的好岗位
C.
先就业、后择业、再发展
D.
等到就业形势好转以后再看
查看完整题目与答案
【简答题】The author uses the example of rattle to show that ________. A) in toy- there is a continuity in the sue of materials B) even the st toys can reflect the progress of technology C) even the...
查看完整题目与答案
【单选题】The author uses the example of a rattle to show that ______.
A.
in toy-making there is a continuity in the use of materials
B.
it often takes a long time to introduce new technology into toy-making
C.
even the simplest toys can reflect the progress of technology
D.
even a simple toy can mirror the artistic tastes of the time
查看完整题目与答案
【单选题】“Geili”, created from the two Chinese characters “gei” and “li”, _______ a word only spoken in some dialects, but now it _______ something cool or exciting all over the country.
A.
is used to being; used to describe
B.
used to be; used to describing
C.
is used to be; used to describing
D.
used to be; is used to describe
查看完整题目与答案
【单选题】The author uses the example of a rattle to show that ______.
A.
in toy-making there is a continuity in the use of materials
B.
even the simplest toys can reflect the progress of technology
C.
it often takes a long time to introduce new technology into toy-making
D.
even a simple toy can mirror the artistic tastes of the times.
查看完整题目与答案
【判断题】加载rattle包的命令是:library(rattle)
A.
正确
B.
错误
查看完整题目与答案
【单选题】在目前我国社会就业压力大的形势下,正确的择业与求职态度应该是( )。
A.
找个好单位，干上一辈子
B.
寻求外资企业中的好岗位
C.
先就业或择业，再发展
D.
等到就业形势好转以后再看
查看完整题目与答案
【判断题】安装rattle包的命令是:install.packages("rattle")
A.
正确
B.
错误
查看完整题目与答案
【单选题】How do naturalists regard the rattle of the rattlesnake?
A.
They believe that the snake is able to control the rattle.
B.
They believe that the snake is unaware of its rattle.
C.
They believe that the rattle is a nervous action.
D.
They believe that the rattle is a deliberate warning.
查看完整题目与答案
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