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【简答题】
生物钟(biological clock)
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Why did the farmer insist on giving the doctor one pound?
A.
He was thankful that the doctor cured him.
B.
The doctor never accepted money from a poor patient.
C.
The doctor thought it unfair to accept the money since he had done nothing.
D.
He insisted that it was his second visit to the doctor.
【单选题】Why are the farmer very happy in autumn?
A.
The good harvest
B.
The flowers.
C.
The interesting sports.
D.
The seafood.
【单选题】关于心的位置的描述,正确的是:
A.
位于胸腔后纵隔下部
B.
前方对胸骨体,后方平对 6~9 胸椎
C.
后方与食管、胸主动脉和迷走神经相邻
D.
约 2/3 在正中线右侧
E.
两侧直接与肺相贴
【单选题】Why didn't the truck owners fight to get away the melons?
A.
The old farmer was a strong enemy.
B.
The price offered for the melons was very low.
C.
It was hard to start a fight against friendly people.
D.
It was necessary to get the truck out before anything.
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