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【多选题】
椎体外伤性压缩骨折的X线表现有（ ）A.
相邻椎体骨质破坏
B.
椎间隙正常
C.
椎旁冷脓肿形成
D.
椎体压缩呈楔形
E.
椎体后突畸形
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反馈参考答案：
举一反三
【判断题】The protein has the properties of UV absorption, which has the maximum absorption peak at 260nm.
A.
正确
B.
错误
【多选题】The UV absorption properties of protein are due to the presence of
A.
tryptophan
B.
glutamic acid
C.
tyrosine
D.
aspartic acid
E.
histidine
【单选题】The hyperchromic effect refers to the increase in the UV absorption of DNA. This is a result of:
A.
Annealing
B.
Melting of DNA
C.
B to Z-DNA conversion.
D.
Increased hydrogen bonding between strands.
E.
Renaturation of DNA
【简答题】Only when each ____step has been checked by other mathematicians will the proof be accepted.
【简答题】Instruments for measuring the absorption of UV, visible, and near-IR radiation are made up of one or more (1) ___________, (2) _____________, (3) _______________, (4)________________, and (5) ________...
【单选题】The hyperchromic effect refers to the increase in the UV absorption of DNA. This is a result of:
A.
Annealing
B.
Melting of DNA
C.
B to Z-DNA conversion.
D.
Increased hydrogen bonding between strands.
E.
Renaturation of DNA
【单选题】Only when each _______ step has been checked by other mathematicians will the proof be accepted .
A.
theroy
B.
fertile
C.
logical
D.
elegant
【简答题】The absorption of UV or visible radiation generally results from _________ of bonding electrons.
【单选题】Only when each _______ step has been checked by other mathematicians will the proof be accepted.
A.
logical
B.
destructive
C.
bound
D.
liable
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