GC法测定糕点中丙酸钙是使用的测量器是()。
A、TCD
B、FID
C、ECD
D、FDP
参考答案:B
—Can I look at the menu for a few minutes before I decide?
—Of course. ______, sir.[ ]
A. Make yourself at home
B. Enjoy yourself
C. It doesn’t matter
D. Take your time
后腹部末节有锐钩状毒刺的药材是
A.冬虫夏草
B.土鳖虫
C.蜈蚣
D.全蝎
E.地龙