第14题: [单项选择]甲醛熏蒸消毒时,不正确的操作方法是()。 A. 被消毒物品应摊开放置 B. 被消毒物品中间应留一定空隙 C. 污染表面应尽量暴露 D. 消毒中灭菌箱内各部位温度不需要保持一致 E. 消毒后,要去除残留甲醛气体 参考答案:D 答案解析:甲醛熏蒸消毒时,灭菌箱内各部位温度有差异会导致水凝凝集,造成甲醛在水中的浓缩和多聚甲醛的形成,影响消毒效果。
第31题: [单项选择]It was odd that you _________ for Margie's address. I just got a letter from her—the first one since her family moved on August 1 1983.
A. should have asked B. would have asked C. shall ask D. might ask 参考答案:A