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【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
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Why did he disapprove of the family?
A.
Because they did not have much money.
B.
Because the children were badly behaved.
C.
Because they did not speak to him.
D.
Because they were arguing in front of other people.
【单选题】Why did Miguel think it was better not to have a family?
A.
Because he thought that sometimes family members kept him from following his heart.
B.
Because he hated his family.
C.
Because his family didn’t love him.
D.
Because he had no family.
【单选题】Why did they want to try that one?
A.
Because it is about family life.
B.
Because they know nothing about it.
C.
Because there is violence in it.
D.
Love story.
【单选题】According to the passage, why did so many family-run businesses fail?
A.
Because they are frequently facing financial problems.
B.
Because the family members in these companies do not trust each other.
C.
Because there are often communicative problems within family members.
D.
Because they do not focus on family ties.
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