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【单选题】
外照射防护的基本方法为A.
时间防护、距离防护、个人防护
B.
时间防护、围封隔离、个人防护
C.
时间防护、距离防护、屏蔽防护
D.
围封隔离、除污保洁、个人防护
E.
围封隔离、除污保洁、屏蔽防护
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反馈参考答案：
举一反三
【单选题】Consider the following statements:Statement A: All the objects of a class share the same copy of the member functions but they maintain a separate copy of the member variables in memory.Statement B: T...
A.
Both statement A and statement B are false
B.
Both statement A and statement B are true
C.
Statement A is false and Statement B is true
D.
Statement A and Statement B both are false
【简答题】The Speed of filling is important. If it is , the casting will occurs the misruns and cold shuts (material solidifies before filling).
【单选题】What is the purpose of the objects traded in the Kula ring?
A.
They are used as currency to buy necessities
B.
They are a sign of status depending on the original owner
C.
They can be eaten
D.
They are used for building huts
【单选题】The Speed of filling is important. If it is , the casting will occurs the misruns and cold shuts (material solidifies before filling).
A.
slow
B.
fast
C.
bad
D.
good
【多选题】The Speed of filling is important. If it is slow , the casting will occurs the and (material solidifies before filling).
A.
misruns
B.
cold shuts
C.
shrinkage
D.
porosity
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