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【单选题】
听力原文：How much is this computer? (3)A.
It's expensive.
B.
It works well.
C.
It's new.
D.
It cost me more than 5,000 yuan.
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反馈参考答案：
举一反三
【单选题】传染病流行必须具备的基本条件是
A.
病原体必须从传染源排出
B.
有病原体存在，并且传播容易实现
C.
有传染源，有能实现的传播途径，有易感性高的人群存在
D.
有易感人群存在，使大批人发病
E.
有传染源、传播途径容易实现，人群易感性低
【单选题】听力原文：W: Look at that boy. He's in the tree, isn't he? M: Yes, I think so. How dangerous ! W: We had better tell him to get down. M: Quite right. But be sure not to frighten him. Who's in the tree?
A.
A man.
B.
A boy.
C.
A woman.
【单选题】传染病流行必须具备的基本条件是
A.
病原体必须从传染源排出
B.
有病原体存在，并且传播容易实现
C.
有传染源，有能实现的传播径，有易感性高的人群
D.
有易感人群存在，有大批人发病
E.
有传染源、传播途径容易实现，人群易感性低
【简答题】查找8位编码: 铜头铁钉(铁杆重量占 80% )( )
【单选题】He decided to ______ the matter himself.
A.
look through
B.
look into
C.
look after
D.
look for
【单选题】传染病流行必须具备的基本条件是
A.
病原体必须从传染源排出
B.
有病原体存在，并且传播容易实现
C.
有易感人群存在，是大批人发病
D.
有传染源存在，并有易感人群
E.
有传染源，有能实现的传播途径，有易感性高的人群存在
【单选题】Why did tom look worried according to the conversation?
A.
Because he had an accident this morning in which a girl was badly hurt.
B.
Beeause he couldn't ride his bike to school this morning.
C.
Because the girl he loved was badly hurt by him this morning.
相关题目：
【单选题】He decided to ______ the matter himself.
A.
look through
B.
look into
C.
look after
D.
look for
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