萎缩性胃炎最常见的临床表现是（）
A.胃酸低下
B.腹胀
C.呕吐
D.中上腹节律性疼痛
E.黑便
参考答案：B
In general, the British people belong to one of the more affluent countries of Europe and enjoy a high standard of living compared to the rest of the world.
A．plentiful
B．powerful
C．friendly
D．wealthy
早产儿体温常低于正常的原因不包括
A．体温调节中枢发育未成熟B．缺乏棕色脂肪C．新陈代谢低下而产热少D．体表面积相对较小E．皮下脂肪少
