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【简答题】
氧元素和硫元素的原子结构示意图分别是( )、( ),他们在周期表中的位置分别是( )、( )。两种元素在周期表中的关系是( )。
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举一反三
【单选题】Dr. Jones ordered______ for the laboratory .
A.
two equipment
B.
two pieces of equipment
C.
two pieces of equipments
D.
two equipment pieces
【简答题】You are the Sales Manager of a company. With the sales season drawing near, you intend to arrange a meeting with your team. Write an email to all staff in your department: imforming them of the exact ...
【单选题】The sales manager asked to be______of everything concerning the sales in time.
A.
communicated
B.
informed
C.
reported
D.
declared
【单选题】Dr. Jones ordered ______ for the laboratory.
A.
two equipments
B.
two pieces of equipments
C.
two pieces of equipment
D.
two equipment pieces
【多选题】在某风机盘管加新风的空调系统设计中，将新风管与风机盘管回风箱相连，下列关于这种连接方式的表述正确的是______。
A.
由于新风与回风混合，因此新风的空气品质下降
B.
有可能使回风过滤器处气流倒流，灰尘重新进入室内
C.
尽管新风的新鲜程度下降，但人员需要的新风量不变
D.
由于增加了新风流通量，使风机盘管需要的送风量增加
【简答题】不管怎么说,你应该写完信以后再跟着打个电话。
【单选题】Dr. Jones ordered_______ for the laboratory.
A.
two equipment
B.
two pieces of equipments
C.
two pieces of equipment
D.
two piece of equipments
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