轨道交通运输运行中的行车有关标志分为( )和( )。
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为避免在嵌套的条件语句if-else中产生二义性,C语言规定:else子句总是与()配对。
A. 缩排位置相同的if
B. 其之前最近的且未配对的if
C. 其之后最近的且未配对的if
D. 同一行上的if
There are so many malls, shopping streets and _______ .
Lots of foreign ______ usually come here to restock and update their wardrobe.
Sometimes one’s method of _______ , such as cash, may bring about a slight discount.