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【单选题】
(吉林省白城一中2019-2020学年期末)基因型为Mm的动物,在其精子形成过程中,基因MM、mm、Mm分开分别发生在( ) 1精原细胞形成初级精母细胞时 2初级精母细胞形成次级精母细胞时 3次级精母细胞形成精细胞时 4精细胞形成精子时A.
①②③
B.
③③②
C.
②②③
D.
②③④
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【判断题】Customs Clearance for Export Commodity issued by the customs or the authorized institution evidencing the customs clearance for the export commodity , showing customs clearance number, the information...
A.
正确
B.
错误
【判断题】I f one nation is less efficient than the
other nation in the production of both commodities, t he nation should specialize in the production of and export the commodity in which its absolute disadvan...
A.
正确
B.
错误
【单选题】According to _____, a nation will export the commodity whose production requires intensive use of the nation’s relatively abundant and cheap factor and import the commodity whose production requires i...
A.
The H-O theorem
B.
the law of absolute advantage
C.
the law of comparative advantage
【判断题】Customs Clearance for Export Commodity issued by the customs or the authorized institution evidencing the customs clearance for the export commodity , showing customs clearance number, the information...
A.
正确
B.
错误
【判断题】Hechscher -Ohlin argued that a nation will export the commodity whose p roduction
requires the intensive use of the nation’s relatively scarce and expensive factor and import the commodity whose produ...
A.
正确
B.
错误
【判断题】While the nation that has both absolute advantage in
production of the two commodities should specialize in
the production of and export the commodity in which its absolute advantage is small er, and ...
A.
正确
B.
错误
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