A、O2和O3 B、 C612 和 C613 C、CH3CH2CH2CH3 和
D、 E．
F．C60和N60 G、
其中
已知函数f（x）=log3x,x>0fx+1,x<0，则f（﹣89）=____
阅读理解
Jazz Dancing
Jazz dancing is fun and easy to learn. Come and learn this wonderful dance from
New Orleans. You'll enjoy it.
Place: Jack Smith's Date: August 1-31
Time: 8:30 pm—10；30 Tel: 0571--82673769
Live Pop Music
Enjoy the music from Jay Chou, the famous pop singer
Place: HuangLong Sports Center Date：August 18—20
Price: ￥300--￥350
Time: 8:30pm—10:30pm
Shows----Hangzhou History Museum
History Museum has more than 1200 pieces on display here.
Come and see the whole of Chinese history!
Place: Hangzhou History Museum
Date: July 1 –August 31
Price: ￥60(half for students) children under 3 is free
Time: Monday to Sunday(except Tuesday); 8:30am—5:30pm
Tel: 0571--88687652
备选词语：A优雅 B优美 C优越 D优异
①我国桥梁事业的飞跃发展，表明了我国社会主义制度的无比____。
②歌词像珠子似的从她的____的“水袖”中，一粒一粒地滚下来。
③我国江西弋阳的主峰．是风景____的游览胜地。
E． 
E．