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【单选题】
在蒸馏过程中,如果发现没有加入沸石,应该()
A.
立即加入沸石
B.
立即加热稍加入沸石
C.
立即加热冷却后加入沸石
D.
不用再加了
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参考答案：
举一反三
【单选题】During a classroom discussion, a teacher remarks, “Raise your hand if you believe that Napoleon was a born leader, and would have become a leader regardless of the historical or political situation du...
A.
trait
B.
laissez-faire
C.
contingency
D.
functional
查看完整题目与答案
【单选题】The _______ classroom is playing a more and more important role during the COVID-19 epidemic.
A.
virtual
B.
traditional
C.
real
D.
genuine
查看完整题目与答案
【单选题】A mobile phone is never allowed into the classroom during the school time, ______? [     ]
A.
hasn't it
B.
has it
C.
is it
D.
isn't it
查看完整题目与答案
【多选题】What can you bring into the classroom during a closed-book test?
A.
Texbooks and notes.
B.
Water in a clear bottle.
C.
Cellphone or calculator.
D.
Pens.
查看完整题目与答案
【多选题】接发列车时，车站值班员应亲自（ ）、接送列车、发车。由于设备或业务量关系，除布置进路（包括听取进路准备妥当的报告）外，其他各项工作可指派助理值班员、信号员或扳道员办理。
A.
办理闭塞
B.
布置进路（包括听取进路准备妥当的报告）
C.
开闭信号
D.
交接凭证
查看完整题目与答案
【单选题】Why did Charlie sit quietly in the classroom during break?
A.
Because he wanted to save energy（节约能量）.
B.
Because it was cold outside.
C.
Because other kids laughed at him.
D.
Because he enjoyed reading in the classroom.
查看完整题目与答案
【单选题】In school, is it required that no parents ___ to classroom during class time?
A.
have access
B.
has connection
C.
have contact
D.
has accesd
查看完整题目与答案
【单选题】During the class break, students went out of the classroom to ( ) themselves.
A.
exercise
B.
practice
C.
stretch out
D.
work out
查看完整题目与答案
【判断题】布置接发列车进路,应由车站值班员亲自办理。
A.
正确
B.
错误
查看完整题目与答案
【简答题】需车站(含车辆段)人工办理闭塞时,车站行车值班员(车辆段信号楼值班员)应亲自办理闭塞、布置进路(包括听取进路准备妥当的报告)、排列、取消进路或开闭信号、交接凭证、接送列车、指示发车或发车。由于设备或业务量关系,交接凭证、接送列车、指示发车或发车工作可指派其他车站值班员或经培训合格的()办理。
查看完整题目与答案
相关题目：
【单选题】During a classroom discussion, a teacher remarks, “Raise your hand if you believe that Napoleon was a born leader, and would have become a leader regardless of the historical or political situation du...
A.
trait
B.
laissez-faire
C.
contingency
D.
functional
查看完整题目与答案
【单选题】The _______ classroom is playing a more and more important role during the COVID-19 epidemic.
A.
virtual
B.
traditional
C.
real
D.
genuine
查看完整题目与答案
【单选题】A mobile phone is never allowed into the classroom during the school time, ______? [     ]
A.
hasn't it
B.
has it
C.
is it
D.
isn't it
查看完整题目与答案
【多选题】What can you bring into the classroom during a closed-book test?
A.
Texbooks and notes.
B.
Water in a clear bottle.
C.
Cellphone or calculator.
D.
Pens.
查看完整题目与答案
【多选题】接发列车时，车站值班员应亲自（ ）、接送列车、发车。由于设备或业务量关系，除布置进路（包括听取进路准备妥当的报告）外，其他各项工作可指派助理值班员、信号员或扳道员办理。
A.
办理闭塞
B.
布置进路（包括听取进路准备妥当的报告）
C.
开闭信号
D.
交接凭证
查看完整题目与答案
【单选题】Why did Charlie sit quietly in the classroom during break?
A.
Because he wanted to save energy（节约能量）.
B.
Because it was cold outside.
C.
Because other kids laughed at him.
D.
Because he enjoyed reading in the classroom.
查看完整题目与答案
【单选题】In school, is it required that no parents ___ to classroom during class time?
A.
have access
B.
has connection
C.
have contact
D.
has accesd
查看完整题目与答案
【单选题】During the class break, students went out of the classroom to ( ) themselves.
A.
exercise
B.
practice
C.
stretch out
D.
work out
查看完整题目与答案
【判断题】布置接发列车进路,应由车站值班员亲自办理。
A.
正确
B.
错误
查看完整题目与答案
【简答题】需车站(含车辆段)人工办理闭塞时,车站行车值班员(车辆段信号楼值班员)应亲自办理闭塞、布置进路(包括听取进路准备妥当的报告)、排列、取消进路或开闭信号、交接凭证、接送列车、指示发车或发车。由于设备或业务量关系,交接凭证、接送列车、指示发车或发车工作可指派其他车站值班员或经培训合格的()办理。
查看完整题目与答案
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