下列药物的理化性质分别是

维生素K₁（）

A．具碱性、水溶性

B．具酸性、水溶性、旋光性

C．具还原性、脂溶性

D．水解后具还原性、脂溶性

E．具醌式结构、脂溶性

Workers in this country are getting higher wages while turning out poor products that do not ______ the test of international competition.

A．keep up with

B．stand up to

C．comply with

D．attend to