药物治疗改善LES功能状态，首选（）。
A.西咪替丁
B.甲硝唑
C.奥美拉唑
D.莨菪碱
E.莫沙必利
参考答案：E
Choose and write.选择正确的单词，并把正确句子写在横线上。
1. I’m nineteen (year, years) old.
2. (What, When) is your birthday?
3. She is (tall, taller) and he is (tall, taller).
