可作片剂润滑剂的是()
A.糊精
B.PVP
C.羧甲基淀粉
D.硬脂酸镁
E.乙醇
参考答案:D
He gave away the company's commercial secret to another competitor,which means_________.
[ ]
A. dismissing
B. being dismissed
C. to dismiss
D. to be dismissed
有机物X是亮菌甲素注射液的有效成分,结构简式如下图所示。下列关于X的判断正确的是
A.有机物X中含有5种含氧官能团,遇FeCl3溶液显紫色
B.有机物X是芳香烃的衍生物,且含有2个苯环
C.1 mol有机物X最多能与5 mol H2发生加成反应
D.1 mol有机物X在一定条件下与NaOH溶液反应,最多能消耗2mol NaOH