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【简答题】
在过氧化钠固体上滴加热水。 2 、将二氧化碳通入过氧化钠。 3 、将氮化镁投入水中。 4 、向氯化锂溶液中滴加磷酸氢二钠溶液。 5 、六水合氯化镁受热分解。 6 、金属钠与氯化钾共热。 8 、将臭氧化钾投入水中。
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举一反三
【单选题】CONVERSATION 2 - Q2
A.
At the airport.
B.
In travel guides.
C.
On the Internet.
D.
At the travel agency.
【单选题】CONVERSATION 2 - Q2
A.
He is surprised.
B.
He is not surprised.
C.
He doesn’t believe it.
D.
He is not interested.
【单选题】CONVERSATION 2 - Q2
A.
Public speaking is the No. 1 fear in North America.
B.
Public speaking is the No. 1 fear across the world.
C.
People in North America don’t like public speaking.
D.
Most people think it difficult to get over the fear of public speaking
【单选题】CONVERSATION 2 - Q2
A.
He is self-employed.
B.
He is a full-time technician.
C.
He is working in an office.
D.
He is unemployed at the moment.
【单选题】CONVERSATION 2 - Q2
A.
He gave a TED Talk.
B.
He mentioned luck in his talk.
C.
He talked about interesting things.
D.
He had a great passion for talks.
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