皮皮学，免费搜题
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搜题
【单选题】
湿空气的湿球温度是( ) 达到饱和时的温度A.
湿空气压力不变
B.
焓不变
C.
温度不变
D.
水蒸汽含湿量不变
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】---What sales tools should we use at the trade shows.?---________
A.
The staff needsmobile phones to talk at the trade show.
B.
We need to have our product catalogues and business cards prepared.
C.
The staff should be very cautious at the trade shows.
【多选题】Trade shows are classified as“_____” , “________”or“_____”.
A.
Professional
B.
Public
C.
Trade Only
D.
Hybrid
【简答题】What kinds of trade shows are there in the real world? There are ______ and Trade Only.
【简答题】Why do cities often promote trade shows? Cities often promote trade shows as a means of ______ .
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