当APU发电机起动正常后，但不能供电给飞机电网，可能原因是（）A.外电源正在向飞机电

No. 4 People Hospital Zhang Jiang     Doctor 1423 Sichuan Road, Shanghai, 200082 Tel: 021- 69673081	School ZhangHongbo Teacher 153 Jiefang Road, Chendu, 610006 Tel: 028- 66630492 E- mail: bdhong @ 163. com
Shen zhou Motorbike Factory Liu Haiping     Worker 35 Xinfeng Street, Tianjin, 300052 Tel: 022- 27364085 Fax (侍真)： 022- 27308695	Shengli Hotel Wang Dong Manager 40 Xinfeng Street Tianjin, 300052 Tel: 022- 27308691 E- mail: likht 235 @ hotmail. com

1. Who lives in the same street?
A. Zhou Jiang and Liu Haiping            B. LiuHaiping and Wang Dong
C. Wang Dong and ZhangHongbo          D. Zhang Hongbo and Zhou Jiang
2. If you want to know something about medicine（药），what number can you call?
A. Tel: 021- 69673081                   B. Tel: 028- 66630492
C. Tel: 022- 27364085                   D. Tel: 022- 27308691
3. Who can’t we write an e-mail to?
A. Zhang Jiang                         B. Liu Haiping
C. Zhang Hongbo and Wang Dong          D. Zhang Jiang and Liu Haiping