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【单选题】
气焊、气割用的气体是乙炔气和( )。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>A.
氨气
B.
二氧化碳
C.
氮气
D.
氧气
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反馈参考答案：
举一反三
【单选题】What does the word 'coaster' mean in the passage?
A.
A disk or plate placed under a drinking glass to protect a table top.
B.
A vessel engaged in coastal trade.
C.
A roller coaster.
D.
A resident of a coastal area.
【简答题】What does drinking too much lead to?
【单选题】Taking into consideration our long standing business relations with you, we accept _______ by D/P
A.
enquiries
B.
invitations
C.
instalment
D.
payment
【单选题】What does the man suggest?
A.
Buying a new kind of coffee.
B.
Drinking some tea.
C.
Giving up drinking coffee.
【单选题】What does the WTO say about 'passive drinking' in the passage?
A.
It means reluctantly consuming alcohol.
B.
It is completely similar to passive smoking.
C.
It does cause additional damage to non-drinkers.
D.
It brings worse damage than passive smoking.
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