Question

---- Is there a vaccine _____ pig influenza?, I’m anxious to know.
----- Don’t worry, there is a vaccine _____ for pigs against pig influenza

A．for; available

B．against ; use

C．to; access

D．against; available

Answer 1

C

C考查考查介词和形容词短语作定语的用法。句意：有治疗猪流感的疫苗么？我非常想知道，不要担心，现在有防止猪感染猪流感的疫苗。available可利用的,against反对符合句意。