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【简答题】
心源性呼吸困难常表现为劳累性呼吸困难、（ ）、端坐呼吸
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反馈参考答案：
举一反三
【单选题】Why did the author become a children’s doctor?
A.
Because he was keen on experimenting on animals to make medical advancements.
B.
Because he wanted to keep the children healthy.
C.
Because he saw too many children suffer from different kinds of illness.
D.
Because he had a strong desire to make a fortune and achieve success.
【单选题】As used throughout the passage, the term 'common' is closest in meaning to which of the following?
A.
Ordinary.
B.
Shared.
C.
Simple.
D.
Popular.
【单选题】Why did the author spend a white Christmas?
A.
It is white.
B.
The food is white.
C.
It snowed that day.
D.
The house is white.
【单选题】Which kind of house fo they live in ?
A.
thatched cottages
B.
semi-detached houses or terraced houses
C.
detached houses
【单选题】Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?
A.
Sub-cooled liquid
B.
Sub-cooled vapor
C.
Superheated vapor
D.
Liquid
【单选题】Why did the author offer a sporting suggestion?
A.
Because the CTA paid little attention to the incident.
B.
Because the bus driver had not been fired.
C.
Because he wanted to threaten (威胁) the CTA people.
D.
Because he thought the punishment was a light one.
【简答题】如果编译的时候提示“找不到头文件”,一般是( )出了问题。
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