胃肠道肿瘤转移的第一器官是()
A.肾
B.肝
C.骨
D.肺
E.心
参考答案:B
解析:肿瘤门静脉型转移,肝为第一转移器官,肺、骨为第二、三转移器官;一些胃肠道肿瘤属于此类型转移。
You'll have an English exam tomorrow. You'd better ____ watch TV this evening. [ ]
A. to not
B. not to
C. don't
D. not
热重分析法的缩写是( )
A.DTAB.DSCC.TGAD.ODSE.RSD