The following are three ads.
Driver Wanted
1. Clean driving license
2. Good-looking
3. Age over 25
Apply (申请) to: Capes Taxi, Shenzhen
Tel: 0755-6561382
Air Hostess(空姐) Wanted
1. Age between 20 and 33
2. Height from 1.6m to 1.75m
3. Two foreign languages
4. College graduate
Apply to: China airlines, Beijing
Tel: 010-88488970
Teacher Needed
For private language school
Teaching experience necessary
Apply to: Instant Languages Ltd, Dalian
Tel: 0411-4313861

What prevents Jack, an experienced taxi driver, working for Capes Taxi

A. Liking beer and wine.
B. Breaking traffic rules.
C. being unable to speak a foreign language.
D. not having college education.

食管的第2个狭窄距中切牙约（）

A.15cm

B.25cm

C.55cm

D.40cm

E.75cm