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【单选题】
代谢性酸中毒主要是由于体内A.
碳酸氢根离子浓度减少
B.
碳酸氢根离子浓度增加；
C.
碳酸浓度增多
D.
碳酸浓度减少；
E.
PCO2增高
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皮皮学刷刷变学霸
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【简答题】(1) What is it? (2) What is it made of? (3) What did the early people use them for? (4) What can you learn about the life of early people from it?
【简答题】现代主义的产生带有明确的
【单选题】What can people do as an effective measure to combat cyber bullying?
A.
To use the internet as less as possible.
B.
To selectively ignore those offensive and humiliating comments, e-mails and photos, etc.
C.
To call on the government to take measures to normalize people’s network behaviors.
D.
To change their beliefs and show more compassion and empathy.
【简答题】Besides the functions as a vital entertainment medium, what else can people use a TV as?
【单选题】符合条件的经营国内,入境,出境游旅行社,每设立一个经营出境旅游业务的分社,增存质量保证金( )。
A.
5万元人民币
B.
10万元人民币
C.
15万元人民币
D.
30万元人民币
【单选题】What can people do if they want to use the air conditioner less?
A.
Open the windows
B.
Go outside
C.
Stay indoors
D.
Wear fewer clothes
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