对维修人员来说，寒冷的工作环境对人生理表现的影响最大的（）
A.嗅觉下降
B.听力下降
C.视力下降
D.手指的活动灵敏度下降
参考答案：D
— Why didn't you go to the party yesterday?
— Because I ______. [ ]
A. was not invited
B. am not invited
C. haven't invited
D. didn't invite
橡胶件在低于-15℃之后，其弹性随温度的降低而急剧降低。
