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【简答题】
商品编码普遍采用的是( )和条形码。 A 、文字代码 B 、数字代码 C 、数字-文字混合代码 D 、字母代码
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反馈参考答案：
举一反三
【简答题】Good n__________(营养) is important.
【单选题】听力原文：W: I'd like to make two reservations one Flight 651 for June 8th. M: I'm sorry. We've booked up on the 8th. But we still have a few seats available on the 9th. When does the man want to leave?
A.
On the 6th of June.
B.
On the 8th of June.
C.
On the 9th of June.
D.
On the 19th of June.
【单选题】Tôi đã đi thăm quảng trường Thiên An Môn và C ố Cung,_____, tôi còn đi thăm Trường Thành.
A.
ngoài... ra
B.
ngoài ra
【简答题】状态转移矩阵Φ(-t)的逆为
【单选题】听力原文：M: I'd like to make two reservations on Flight 651 for June 8th. W: I'm sorry, we're booked up on the 8th. But we still have a few seats available on the 9th. Q: When does the man want to leave? ...
A.
On the 6th of June.
B.
On the 8th of June.
C.
On the 9th of June.
D.
On the 19th of June.
【简答题】I'm assuming that the misunderstanding will be settled and an explantion will be given.
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