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【单选题】
一般多层单元式住宅公共楼梯的形式是（ ）。A.
现浇
B.
现浇板式
C.
预制式
D.
悬挂式
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皮皮学刷刷变学霸
举一反三
【单选题】By the time I was nine ,I ______hundreds of English words.
A.
had learned
B.
have learned
C.
has been learned
D.
had been learned
【单选题】What’s the meaning of “I have other fish to fry”?
A.
I have something else to do
B.
I have other fish that has been prepared by frying
【单选题】This is the least wonderful TV play ___.
A.
what I have ever seen
B.
I have ever seen
C.
I have ever seen it
D.
that I have ever seen it
【多选题】有关紫外线灯管消毒正确的描述是
A.
紫外线灯管具有消毒效果的是C波紫外线
B.
室温在20-40℃时，紫外线输出功率最大，室温低于20℃或高于40℃需延长消毒时间
C.
湿度在40-60%为紫外线最佳杀菌湿度，所以湿度低于40%或高于60%应延长消毒时间
D.
物品消毒有效距离25-60cm，消毒时间20-30分钟；空气消毒有效距离不超过2m，消毒时间30-60分钟
E.
应用的紫外线灯管照射强度不低于70u w/cm²，否则应更换紫外线灯管
【单选题】I have made _______ clear _______ I have nothing to do with the accident.
A.
it; what
B.
that; that
C.
this; what
D.
it; that
【多选题】下列关于紫外线消毒描述正确的是( )。
A.
紫外线穿透力差，消毒物品不可有任何遮蔽
B.
需定期检查紫外线杀菌效果
C.
紫外线灯管要保持清洁明亮
D.
照射前病室应先做好清洁工作
E.
灯管使用期限不能超过3000小时
【单选题】关于紫外线的描述，哪项不正确：
A.
穿透力强
B.
常用于空气、物体表面的消毒
C.
日光照射主要是靠紫外线杀菌
D.
对人体眼睛、皮肤有损伤作用
E.
能干扰细菌DNA的复制，使其变异死亡
【单选题】------What’s the matter with you? ------I have a ___________.I have to see the dentist.
A.
cold
B.
sore throat
C.
toothache
D.
headache
【单选题】---- What about going swimming this afternoon , Tom? ---- ____. I have a test tomorrow, so I have to go over my lessons today.
A.
I’d like to
B.
I’ll take it
C.
I’d rather not
D.
I don’t think so
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