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【单选题】
以下属于兼性异染色质的结构是A.
着丝粒序列
B.
端粒序列
C.
次缢痕序列
D.
X
E.
核仁
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】What did Chadwick make important contributions to the field of atomic structure ?
A.
Chadwick discovered proton
B.
Chadwick discovered electron
C.
Chadwick discovered neutron
D.
Chadwick discovered nucleus
【单选题】应急医疗箱内配有的医疗用品有_______？
A.
止血带、脐带夹、阿司匹林、体温计、氯化钠注射液
B.
消毒棉签、剪刀
C.
三角巾、夹板、敷料
D.
绷带、胶布、退烧药、外用烧伤药膏
【单选题】What theory of motivation states that people are strongly motivated to maintain a balance between what they perceive as their contributions and their rewards?
A.
Two-factor theory
B.
Equity theory
C.
Learned needs theory
D.
Expectancy theory
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