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【判断题】
直线方位角与该直线的反方位角相差360度A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】Each B cell only expresses a single type of receptor to recognize a single type of antigen
A.
正确
B.
错误
【单选题】_________ is the only phase of DNA replication that is known to be regulated, and it is regulated such that replication occurs only once in each cell cycle.
A.
Initiation
B.
Elongation
C.
Termination
D.
Repair
【单选题】What do we learn about a stem cell?
A.
It has no difference from other cells.
B.
It can only become a certain type of cell.
C.
It can't become a kidney cell.
D.
It maintains and repairs the body.
【单选题】关于清创术错误的是
A.
清洗伤口，切除失活组织
B.
使污染伤口变为或接近清洁伤口
C.
对伤后12h以内伤口，经彻底清创，可一期缝合
D.
对颜面部伤口，超过12h，不考虑清创缝合
E.
对污染重的伤口，清创后可延期缝合
【单选题】Which is the following is NOT the function of each glia cell ?
A.
Astrocyte: regulates neuron transmitter in CNS
B.
Microglia: Remove dead neuron cell in CNS
C.
Astrocyte: form blood-brain barrier
D.
Schwann cell: Form myelin sheaths in CNS
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