New Yorkers today are more friendly and ready to help others.
查看答案
According to the research, young people are much more polite than other age groups.
A. 对
B. 错
Citizens in Zagreb did the best job in helping to pick up the dropped paper.
A. 对
B. 错
The politeness in stores is partly out of the purpose to keep the customer.
A. 对
B. 错
下列糖属于多糖的是
A. 半乳糖
B. 蔗糖
C. 透明质酸
D. 果糖
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