司可巴比妥含量测定法
A．银量法B．溴量法C．熔点测定法D．紫外分光光度法E．碱水解后银量法
参考答案：B
---Have we ________ food?.
--- Yes, ______. We’d better buy some.
A．run out of; we have run it out
B．run out of; our food has run out
C．run out; our food has been run out
D．run out; our food has run out
“雄赳赳，气昂昂，跨过鸭绿江……”展现了当年志愿军战士抗美援朝，保家卫国的英雄风采。抗美援朝战争爆发距今[ ]
A．40周年
B．50周年
C．60周年
D．70周年
