对以旧换新销售业务，销售的商品应按新旧商品市场价格的差额确认收入。 ( )
查看答案
非参数统计比较的是资料的
A. 参数
B. 频数
C. 统计量
D. 分布
E. α
Gerald: Excuse me. Will someone be using this seatManager: No.（）
A. How did you like it
B. I heard you took a trip to Mexico.
C. Maybe by then it’ll be too late.
D. Perhaps you should buy a new one.
E. You know what you can do
F. That’s funny.
G. You can take it.
H. Can you do me a favor
地区发展不平衡是普遍规律，对东部与中西部地区发展差距扩大无需特别关注。 ( )
A. 对
B. 错
30（）
A. working
B. playing
C. sitting
D. sit
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