题目内容

Why will the guest's friends be late?Because of a heavy _____________________.

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What is the guest's last name?

How many are there in their party?

A. 6
B. 7
C. 8
D. 9

What kind of drink does the guest order at first?

A jasmine tea
B. An orange juice
C. A cold water
D. A hot water

在MATLAB中计算行列式的函数是( )

A. rem( )
B. sqrt( )
C. det( )
D. mod( )

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