水溶解后加Na0H溶液显深橙红色的药物是()
A.异烟肼
B.阿司匹林
C.氧氟沙星
D.小檗碱
E.甲丙氨酯
参考答案:A
—Sorry, I can’t return your book today because I am only halfway through it.
— ______. I have plenty of other books to read.
A. Take it easy B Take your time
C. No wonder D. No doubt
一个袋子中有15个红球,5个白球,每个球除颜色外都相同,任意摸出一个球,摸到( )球的可能性较大.
A.红球
B.蓝球
C.白球
D.都一样