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【判断题】
具体产品的年产量之和与假定产品的年产量不一定相等。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】《中国药典》规定青霉素钠的含量测定方法为( )
A.
非水溶液滴定法
B.
旋光法
C.
HPLC法
D.
紫外分光光度法
E.
汞量法
【单选题】将He has returned the book.改为否定句。
A.
He hasn't returned the book.
B.
He has returned not the book.
【单选题】Only when _______ home_____ that he had left his bag in the taxi he had taken.
A.
he returned; did he realize
B.
did he return; did he realize
C.
he returned; he realized
D.
did he return; he realized
【判断题】After living in Paris for fifty years he returned to the small town which he grew up as a child. ()
A.
正确
B.
错误
【单选题】《中国药典》规定青霉素钠的含量测定方法为
A.
非水溶液滴定法
B.
旋光法
C.
HPLC法
D.
紫外-可见分光光度法
E.
汞量法
【简答题】After years abroad, he returned to his hometown, ________ he spent his childhood.
【判断题】川贝母偏于泻,浙贝母偏于润。
A.
正确
B.
错误
【单选题】He ______ that he had been in prison twice before.
A.
revealed
B.
revised
C.
rewrote
D.
returned
【单选题】he head of the company promised to deal with matters of   this sort ________ he returned to his office. [     ]
A.
until
B.
while
C.
by the time
D.
the moment
【单选题】《中国药典》规定青霉素钠的含量测定方法为
A.
非水溶液滴定法
B.
旋光法
C.
HPLC法
D.
紫外-可见分光光度法
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