如积块肿大，坚硬而正气受损者，可并服
A．寒战发热伴有咳嗽气急、胸痛等症
B．冬春
C．寒热往来，汗出热退，休作有时为特征
D．春夏
E．夏秋
参考答案：A
设a，b是方程x2+x-2011=0的两个实数根，则a2+2a+b的值为（ ）
A．2009
B．2010
C．2011
D．2012
根据句意，用括号中所给单词的适当形式填空。
1. It's impolite to make (noise) while eating noodles.
2. By reading this article, we can learn about table (manner).
3. At that time, all the questions (crowd) my mind.
4. When I first ate in a (west) restaurant, I didn't know what to do.
5. We should speak to old people (polite).
