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【单选题】
非放射专业学生教学期间，有效剂量当量不得大于（）A.
0.5mSv/年
B.
1.0mSv/年
C.
1.5mSv/年
D.
2.0mSv/年
E.
2.5mSv/年
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【单选题】The boys always stays here for _________>
A.
one and half hour
B.
one and half a hour
C.
one and a half hours
D.
one and half hours
【简答题】This passage can be divided into 3 parts. Part two is from paras.5-10. What is the main idea of this part ?
【单选题】【单选】根据《河南省房屋建筑与装饰工程预算定额》 HA 01-31-2016 ,天棚面层在同一标高者为平面天棚,天棚面层不在同一标高者为跌级天棚。跌级天棚其面层按相应项目人工乘以系数( )。
A.
1.3
B.
1.4
C.
1.5
D.
1.2
【单选题】This is a typical emitter follower. What is the main benefit obtained by use of an emitter follower?
A.
The collector can be connected to as high voltage as 10 V DC.
B.
The V out is always equivalent to the V in.
C.
The input impedance is made much larger than the output impedance.
D.
The input impedance is made much smaller than the output impedance.
【简答题】what is the main idea of part III(8-10)?
【简答题】第8章6. Who said “He who wishes to be a surgeon should go to war”?7. What is the main idea of paragraph 1?8. What did Pare find when he was treating Henri II?9. How did Pare get his surgical training? 1...
【单选题】What is the main topic of the passage?
A.
Cultural oversights can be disastrous.
B.
The lesson Procter and Gamble learned.
C.
The superstition about number.
D.
What illustrations show.
【简答题】Henry walked for OD_e hour and a half to get home． →It______Henry one hour and a half to walk home．
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