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【单选题】
三胚层胚盘的三个胚层均起源于A.
外胚层
B.
上胚层
C.
下胚层
D.
胚外中胚层
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反馈参考答案：
举一反三
【简答题】鲤鱼在底泥中觅食，带进许多_______而产生泥土味。 (A)细菌 (B)放线菌 (C)酵母 (D)霉菌
【简答题】A．Because the water pressure is greater than air pressure. B．Because the first Comets crashed in the water. C．Because there is less damage when the explosion takes place under water. D．Because it is t...
【单选题】Careers in the public sector are more attractive because of their.
A.
greater stability
B.
higher pay
C.
fewer applications
D.
better reputation
【单选题】In the second paragraph, why is the word 'greater' in italics?
A.
Because the pleasure a person can experience in the present will always be regarded as the most important.
B.
Because the author is insisting on the falsity and inner opposition of the statement.
C.
Because the extent or impact of the satisfaction felt by an individual is paramount.
D.
Because the author is using the superlative as a general term of approval.
【多选题】关于弹性力的说法,以下哪种是正确的:( )
A.
弹性力起源于构成物质的微粒之间的电磁力
B.
弹性力属于万有引力的一种
C.
桌面对放置其上面物体的支持力属于弹性力
D.
绳子发生形变产生的张力属于弹性力
【单选题】Because of the______of alternative therapy in the West, Chinese physicians have greater confidence that the Chinese remedies with natural herbs are effective.
A.
truthfulness
B.
decocting
C.
panacea
D.
intrusion
E.
efficacy
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