当x=2时，下面的程序段结果是（ ）
i=1
s=0
WHILE i＜=4
s=s*x+1
i=i+1
WEND
PRINTs
END．
A：3
B：7
C：15
D：17
— Why did she ______ your invitation?
— Because she had an important meeting to attend that day.
70－20=____
70－40=____
70－50=____
70－70=____
下面是对《西游记》的简单介绍。请从方框内所给词的适当形式填空，使短文完整。
influence, know, it, everyone, favorite, culture, history, novel
Journey to the West is one of the greatest ____ in China. It has a long ____ in China. It reflected Chinese great ____ The book has enjoyed great popularity among the people and has exerted a tremendous (巨大的) ____ on Chinese minds. Many of the characters and stories in the book ____ to ____ in China, not only including housewives, but also children. ____ writer is Wu Cheng'en. The Monkey King is our ____ character.
2001年5月，台湾传出“毒饮料事件”，一些厂商在饮料中违法添加了“塑化剂”。塑化剂的主要成分为邻苯二甲酸二辛酯，其化学式为C24H38O4.下列说法中正确的是（）
