More strict measures should be taken more people are infected with the virus of H1N1 flu.
A. so that
B. as if
C. in case
D. even if
网友回答
A. so that
B. as if
(答案→)C. in case
D. even if
解析：短语辨析。 A. 以便；所以 B.犹如；好似 C. 万一；假使 D.即使；虽然。句意：万一更多的人感染H1N1流感病毒，必须采取更严厉的措施。故选C。