某花卉鲜重200g,10﹪为干物质,测得其含氮为4﹪,若植物对氮肥利用率为20﹪,则该花卉应施:()克硫胺(含氮20﹪)
A.5克
B.10克
C.20克
D.30克
参考答案:C
Recently reports about the abuse of children have _____ as often as several times a week, causing a wide concern and discount of trust among the public.
A.turned up
B.pulled up
C.taken up
D.brought up
男性,48岁,乙型肝炎病史8年,右上腹疼痛不适,无畏寒、发热、黄疸,AFP阳性,诊断为肝癌,此病人首选的治疗方法是()。
A.手术切除
B.化疗
C.放疗
D.免疫治疗
E.肝移植