胃溃疡好发部位是（）
A.胃底部
B.胃小弯
C.胃大弯
D.胃后壁
E.贲门部
参考答案：B
— Do you have any plans for this holiday?
— To tell you the truth, I have nothing in for holiday.
A．head
B．mind
C．heart
D．brain
效度有哪些种类？
