某产品运用价值工程分析,进行方案创新,产生了甲、乙、丙、丁四个方案。有关各方案的部分数据见下表,则优选方案应是()。
A. 甲方案
B. 乙方案
C. 丙方案
D. 丁方案
查看答案
地西泮注射液的含量测定应采用
A. 紫外分光光度法
B. 紫外分光光度对照品对比法
C. 紫外分光光度吸收系数()法
D. 非水滴定法
E. HPLC
听力原文:M: When did you say the plane would arrive?
W: At a quarter past two, very shortly in fact.
M: Do you think you'll recognize Carl when you see him?
W: I don't know. I haven't seen him since he was 16. Time flies. Now 9 years have passed.
What time do you think it is now?
A. 1:40
B. 2:10
C. 2:40
【B12】
A. pleasing
B. excited
C. stupid
D. funny