—Did the policeman let you in?—No,        I told him who I was.

A．if

B．once

C．as though

D．even though

在肉制品加工中（）具有调味、防腐、保鲜、提高保水性和粘着性等作用。

A、蔗糖

B、磷酸盐

C、味精

D、食盐