问题
单项选择题
用紫外线灯消毒空气，下述哪项错误 ()。
A．灯管用无水乙醇纱布擦净
B．消毒过程用纱布遮盖病人双眼
C．灯亮5min开始计时
D．关灯后须冷却3～4min再开
E．使用超过2000h的灯管应更换
答案
参考答案：E
解析：[考点] 物理消毒灭菌法[重点等级] ★★★★★
搜题请搜索小程序“爱下问搜题”
用紫外线灯消毒空气，下述哪项错误 ()。
A．灯管用无水乙醇纱布擦净
B．消毒过程用纱布遮盖病人双眼
C．灯亮5min开始计时
D．关灯后须冷却3～4min再开
E．使用超过2000h的灯管应更换
参考答案：E
解析：[考点] 物理消毒灭菌法[重点等级] ★★★★★
What do you do at weekends? Some people like to ____ at home, but others like to go for a walk ____ have a picnic. My friend Jack works hard in a factory during the ____. At weekends he always ____ the same thing. On Saturday he ____ his car and on ____ he takes his family to a nearby village. His uncle and aunt have a farm there. It isn't a ____ one, but there's always ____ to do. The children help with the animals and give them their ____, Jack and his wife help in the fields. At the end of the day, they are all ____ and Jack's aunt gives them a big meal.
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