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【单选题】
影响筛检试验阳性预测值的是
A.
发病率
B.
死亡率
C.
罹患率
D.
生存率
E.
患病率
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参考答案:
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【判断题】典型的非线性环节有继电器特性环节、饱和特性环节、不灵敏区特性环节等。()
A.
正确
B.
错误
【简答题】阅读理解。 Beijing opera or Peking opera is a form of Chinese opera which arose in the late 18th century and became fully developed and recognized by the mid-19th century. The form was extremely popular in...
【单选题】Beijing Opera is our national opera ________ a history of 200 years.
A.
about       
B.
with     
C.
at
【单选题】We wish to receive your shipping advice soon for the goods under the captioned
A.
letter      
B.
cable      
C.
contract    
D.
communication
【单选题】For the goods under our contract No. 80, we have booked space on s.s “East wind” ________ arrive inLondon around May 19.A. is due to B. due to C. which due to D. due
A.
is due to
B.
due to
C.
which due to
D.
due
【单选题】For the goods under S/C No.555,we ____ space on S.S Dongfeng due to arrive in London around May 1st.
A.
have booked
B.
have bought
C.
have hired
D.
have retained
【单选题】For the goods under the S/C No. 48296, we have booked space on S. S. “Prince” ______ arrive in London around May 1.
A.
owing to
B.
is due to
C.
which is due to
D.
which is owing to
【单选题】For the goods under S/C No.325, we have space on S.S. Shanghai due to arrive in London around May 1.
A.
booked
B.
hired
C.
retained
D.
bought
【单选题】For the goods under S/C No.234, we _______ space on S.S. “East Wind” due to arrive in London around May 4.
A.
have booked
B.
have bought
C.
have hired
D.
have retained
【单选题】What are they going there for?
A.
To meet friends.
B.
To see Beijing Opera.
C.
To learn Beijing Opera.
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