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【单选题】
下列变化中属于分解反应的是A.
蜡烛燃烧
B.
分离液态空气制氧气
C.
海水晒盐
D.
加热氯酸钾和二氧化锰制氧气
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】用于绘制透视图的投影方法是 ,用于绘制轴测图的投影方法是 。
【单选题】In Tomorrow, Summer, Why had the biology teacher made fun of Mirage's name by asking “Do some people call you Illusion”?
A.
Because the words ,mirage and illusion ,have the similar meaning.
B.
Because Mr. Ray is a humorous teacher.
C.
Because the biology teacher wanted to punish Mirage.
D.
Because Mirage is a naughty girl.
【单选题】In Tomorrow, Summer, all the students liked Mr. Ray very much because he was a good teacher.
A.
True
B.
False
【单选题】下列关于要约撤销的表述中，错误的是（ ）。
A.
要约生效后，不得撤销
B.
要约人确定了承诺期限的，要约不可撤销
C.
要约人以其他形式明示要约不可撤销的，要约不能撤销
D.
受要约人从要约的条款中推测出要约是不可撤销的，并已 经为履行合同作了准备工作的，邀约不可撤销
【单选题】In Tomorrow, Summer, according to the conversation between Manny and Mr. Ray at the grocery store several months later, which of the following is not true?
A.
Mr. Ray was badly ill.
B.
Mr. Ray thought he was not a humorous teacher.
C.
Mr. Ray didn't have much time left to live.
D.
Manny thought Mr. Ray was a humorous teacher.
【简答题】刮剥洗涤法可以用来洗涤家畜类原料的外皮污垢和( )。
【单选题】(Unit3阅读理解)In Tomorrow, Summer, Who helped Mirage out when she answered Mr. Ray in his own cadence ?
A.
Manny
B.
Amal
C.
Not mentioned.
D.
A waiter
【单选题】(True or False)In Tomorrow, Summer, after knowing Mirage impersonated him, Mr. Ray got angry and walked away.
A.
True
B.
False
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