单选题
The United States Food and Drug Administration has shown itself to be particularly
wary
with regard to alleged "miracle" drugs in recent times.
【正确答案】
C
【答案解析】[解析] 本题中,wary的意思是“机警的”。四个选项中,cautious的意思是“谨慎的,小心的”,如:The schoolboys are more cautious not to make any mistakes in spelling than ever before.(男学生们在拼写时比以前更加小心,以避免发生错误)。bellicose的意思是“好战的,好斗的”;exhausted的意思是“耗尽的,疲惫的”;strange的意思是“生疏的,陌生的”。只有C项符合题意。