同美洲钩虫相比,十二指肠钩虫可致宿主出血量为()()
A.一样多
B.少
C.高1~2倍
D.高2~3倍
E.高6~7倍
参考答案:E
痛风系由于下列哪种物质代谢障碍而导致的疾病()
A.烟酸
B.蛋白质
C.维生素B1
D.嘌呤
E.电解质
The ship which strikes any other vessel is called the().
A.ship in the wrong
B.responsible vessel
C.vessel to be responsible
D.wrong ship