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【简答题】
下列现象哪些是物理变化，哪些是化学变化？并简要说明判断的理由。 （1）铁生锈 （2）石蜡融化 （3）纸张燃烧 （4）陶瓷破碎 （5）铜在潮湿的空气里生成铜绿 （6）潮湿的衣服被晒干了 （7）下雪后天气晴暖，雪融化 （8）在寒冷的冬天向窗玻璃上哈气，会出现一层水雾
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【单选题】W: Good morning, sir. What can I do for you? M: Good morning. I'm Joe in 208. Could you change me into another room? It's too noisy here. W: Well, I'm afraid there is nothing we can do about it right ...
A.
In a bookstore.
B.
In a classroom.
C.
In a library.
D.
At a hotel.
【简答题】简述足弓的定义?
【简答题】S1:Hello. Are you ready to order?S2:Yes, I am.S1:Right. What would you like?S2:Latte,coffee with milk,please.Q:Where does this conversation probably take place?A. in the mess room B. In the galley C. ...
【单选题】B. Listen to the short conversations and choose the best answer to each question you hear. Both the conversations and the questions will be spoken twice. Q6: Where does this conversation most probably...
A.
At the airport.
B.
At the hotel.
C.
At Ms. Clark's office.
D.
At Mr. Cooper's office.
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