为明确诊断，做下列哪项检查最佳
A．食管吞钡X线检查B．胃镜检查C．B超检查D．肝功能检查E．腹部平片
参考答案：B
There are _________ months in a year.[ ]
A. twelve
B. twelfth
C. seven
完成句子。
1. 李娜对很多中国人产生了巨大的影响。
Li Na made ______ ______ ______ ______ many Chinese people.
2. 政府派了一些医生到贫困地区。
Government ______ some doctors ______ the poor rural areas.
3. 幸运地是，那个贫穷的孩子得到许多人的帮助。
______, the poor child got many people's help.
4. 作为一名老师，我很乐意帮助困难的学生。
______ a teacher, I am glad ______ ______ the students in trouble.
5. 那是一个很艰难的决定。最后他还是决定辞职。
It was a difficult ______. He decided ______ ______ his job in the end.
