What does “ bell man” mean?
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How do you express “信用卡”in English? (信用卡用英语怎么说?)
A. Credit Card
Business Card
C. Post Card
There is no check out in some homestays. (有些民宿不需要办理退房手续。)
A. True
B. False
普通变量会在每根K线都初始化一次,记录不了上次赋予的值。
A. 对
B. 错
全局变量只会在第一根k线初始化一次,值的变化规则完全由用户自己去定义
A. 对
B. 错