风俗、习惯、道德等在一般情况下只能称为(),而不能称为社会制度。
A、社会风尚
B、社会规范
C、社会机构
D、会伦理
参考答案:B
I must think of a proper gift for my mother, won’t be expensive but will make her happy.
A.who that
B.the one which
C.it
D.one that
混悬液型注射剂必须严格控制药物颗粒大小,供一般注射者,颗粒应小于15µm,15~20µm颗粒应不超过().
A.l%
B.5%
C.l0%
D.15%
E.20%