急性糜烂性胃炎出血的主要症状是（）
A.恶心、呕吐
B.腹胀、腹泻
C.腹部不适
D.呕血、黑便
E.食欲减退
参考答案：D
李后主是指
A．李商隐
B．李煜
C．李璟
D．李白
My hometown lies ___ the city. ___ I often go to the city by bike. [ ]
A. 50 miles in the east; However
B. to the east 40 miles of; But
C. in the east 45 miles from; But
D. 35 miles east of; However
