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【单选题】
种子在破嘴时给予1-2天( )的低温锻炼,可提高作物抗寒力,加快发育速度。A.
0℃以下
B.
0～5℃
C.
5℃以上
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【单选题】关于儿童股骨头骨骺骨缺血坏死的Ⅹ线征象下列哪一项是错误的
A.
股骨头骨骺较小且扁
B.
股骨头骨骺密度增高
C.
股骨头骨骺增生
D.
早期出现明显关节间隙狭窄
E.
治疗准确及时者，死骨吸收消失，新骨出现，股骨头骨骺大小。密度及结构回复正常
【简答题】How do we produce a fine grain size in the ferrite and still use high rolling temperatures to form the austenite?
【单选题】What statement is NOT the author's answer to the question “How Do We Acquire Language”?
A.
We acquire our native language in a natural way.
B.
We are preprogrammed to process and produce our first language.
C.
Children don't always follow the exact stages presented in the studies of L1 acquisition.
D.
Infant babies are not able to pick out their native language from other sounds untile they are 10-month-old.
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