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【多选题】
什刹海三轮车胡同中外游客认识北京的一个窗口。但是,有些车夫不按照导游词讲解,有些更乐于传播小道消息。要让游客对北京历史文化形成一个比较真实、生动、完整的概念,应该( )A.
提高车夫的职业准入门槛
B.
由老北京人做京城文化的讲述者
C.
在导游词中编入高质量的什刹海故事
D.
加强什刹海地区爱国主义教育示范基地建没
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皮皮学刷刷变学霸
举一反三
【单选题】()驱动系统的结构特点是可以单独使用发动机或电动机作为动力源,也可以同时使用电动机和发动机作为动力源驱动汽车行驶。
A.
串联式
B.
并联式
C.
混联式
D.
复合式
【简答题】Suppose we built a robot(机器人)to explore the planet Mars. We provide the robot with seeing detectors(探测器)to keep it away from er. It is powered entirely by the sun. Should we program the robot to b...
【简答题】At the beginning of this century, medical scientists made an interesting discovery; we are built not just of flesh and blood but also of time. They were 36 to show that we all have “a body clock” ...
【简答题】At the beginning of this century, medical scientists made an interesting discovery: we are built not just of flesh(肌肉) and blood but also of time. They were 21 to show that we all have a ‘body clock’ ...
【单选题】Each child an apple at the end of yesterday's party.
A.
has been offered
B.
were offered
C.
was offered
D.
has offered
【简答题】At the beginning of this century, medical scientists made an interesting discovery; we are built not just of flesh and blood but also of time. They were to show that we all have “a body clock” us, whi...
【单选题】All the children had a good time at Mark’s birthday party.
A.
help each other
B.
enjoyed themselves
C.
had a wonderful time
D.
have a big dinner
【简答题】串联式混动汽车完全由( )提供动力驱动汽车,( )只作为发电机的动力源。
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