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【多选题】
装配滚动轴承时()。
A.
同轴上的两个轴承必须有一端可随轴的热膨胀时能产生移动
B.
轴承工作温度一般不超过65℃
C.
轴承外圈与配合要紧,内圈与轴配合要松
D.
轴承装在壳体上时应没有歪斜现象
E.
把轴承装在,再将轴装入轴承内圈
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举一反三
【单选题】( )是哺乳动物B细胞成熟的场所。
A.
骨髓
B.
脾脏
C.
淋巴结
D.
胸腺
【单选题】P art III Vocabulary There are five sentences in this section. Beneath each sentence there are four options marked A, B, C and D. Choose the one that best completes the sentence. 1. He gave an ___ shu...
A.
expressive
B.
extensive
C.
expressing
D.
exclusive
【单选题】The figure of speech used in the sentence “When the war was over, he laid down the sword and took up the pen.” is ______.
A.
P ersonification
B.
Euphemism
C.
Metonymy
D.
Synecdoche
【单选题】Look at the four squaresthat indicate where the following sentence could be added to the passage. Hunt for bargains when booking flights and you might be able to save enough to take that extra trip an...
A.
Square A.
B.
Square B.
C.
Square C.
D.
Square D.
【单选题】朝鲜民族舞蹈因历史的各种原因,以古代遗留的朝鲜族为基础,现已形成三个地域性特色,其中包括中国、韩国( )。
A.
朝鲜
B.
印度
C.
日本
D.
泰国
【单选题】哺乳类 动物 B细胞成熟的场所是( )
A.
骨髓
B.
胸腺
C.
腔上囊
D.
A+B+C
【单选题】在糖原合成中被称为活性葡萄糖的是()
A.
ATP
B.
ADP
C.
UDPG
D.
UTP
【单选题】哺乳动物 B 细胞发育成熟的场所是
A.
骨髓
B.
胸腺
C.
淋巴结
D.
脾脏
E.
粘膜伴随淋巴组织
【单选题】哺乳动物 B细胞发育成熟的场所是
A.
骨髓
B.
胸腺
C.
淋巴结
D.
脾脏
E.
黏膜相关淋巴组织
【简答题】Direction: Complete the sentence with a proper phrase on P. 42 of your textbook. Make suitable changes if necessary. He saw his life savings when the stock market crash.
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