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【单选题】
《中国药典》的'检查'项是指A.
检查药材真实性的方法
B.
对药材的纯度进行测定的方法
C.
测定药材主成分的含量
D.
检查有无杂质
E.
检查药材各项指标是否符合药典规定
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举一反三
【简答题】We usually have lunch at school. We ______ have lunch at school.
【简答题】A．a lunch B．lunch C．dessert D．supper
【单选题】现有NH 4 Cl、(NH 4 ) 2 SO 4 、Na 2 SO 4 、NaCl四种固体试剂，用一种试剂就可以把它们一一鉴别开，这种试剂是
A.
AgNO 3
B.
NaOH
C.
Ba(OH) 2
D.
BaCl 2
【单选题】Where did the man have his lunch today?
A.
The man had his lunch in the lunch room.
B.
The man has his lunch in the classroom.
C.
The man did not have his lunch today.
【简答题】A．It's almost time for lunch. B．Only a few strawberries will be eaten at lunch. C．There are just enough strawberries for lunch. D．There won't be many people.
【单选题】单项选择。 Does the waiter ______ today? [ ]
A.
have lunch
B.
has lunch
C.
have the lunch
D.
has the lunch
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