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读全球能量盈余区与亏损区随纬度分布示意图，回答问题。 小题1:40°N—40°S地区是能量盈余区，主要原因是( ) A．正午太阳高度较大 B．对流层的厚度较大 C．太阳辐射的时间较长 D．大气的保温作用强 小题2:关于全球热量收入与支出的叙述，正确的是( ) A．热量净收入从低纬地区到高纬地区逐渐增大 B．各纬度的热量收支基本平衡 C．赤道地区热量收入最大，极地地区热量支出最大 D．海洋热量的收入主要来自太阳辐射，支出主要由于海水蒸发耗热 小题3:全球热量平衡主要依靠( ) ①大气环流 ②生物循环 ③洋流 ④地壳物质循环 A．①② B．①③ C．②③ D．③④
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【单选题】By the time Mr. Saint Laurent set up shop in Paris under his own name, he had always worked as a (n)
A.
showman.
B.
artist.
C.
painter.
D.
designer.
【单选题】When Mr. Smith took over the company, it was already heavily______ and had no money to pay the workers.
A.
in danger
B.
in relief
C.
in debt
D.
in return
【单选题】水平角测量时，角值β =b-a。现知读数a为82°33′24″，读数b为102°42′12″，则角值β是【 】
A.
20°18′46″
B.
20°08′48″
C.
20°42′24″
D.
20°38′12″
【简答题】Mr. Lang worked in a factory. As a driver, he was busy. Sometimes, he brought some materials to the factory, and most of the time, he had to carry the goods to the customers of the factory. It was not...
【单选题】—You seem familiar with Mr. John? —Sure, we ______ together for three years in the 1990s.
A.
have worked
B.
had worked
C.
are working
D.
worked
【简答题】路面结构的主要层次是 、 、 。 任何一种路面必须有 。
【单选题】By the time Mr. Saint Laurent set up shop in Paris under his own name, be had always worked as a(n)
A.
showman.
B.
artist.
C.
painter.
D.
designer.
【简答题】在零件图上,标注Φ6H7,表示要进行 ,钻底孔 。
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