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【判断题】
行列式是一个数或者表达式,而矩阵是一个A.
正确
B.
错误
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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】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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