诊断反流性食管炎最重要的检查方法是
A．食管测压B．24h食管pH监测C．内镜检查D．食管钡剂X线检查E．滴酸试验
参考答案：C
用“be”的正确形式填空。
1. These _____________ the three wise men.
2. One day, a little baby _____________ born.
3. There _____________ some water in the glass.
4. Tom and Jack _____________ playing games.
5. I _____________ cooking dinner in the kitchen.
Rose came to Beijing in 2002. she ______ here for eight years.
A．was living
B．live
C．will live
D．has lived
