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【简答题】
常用活性炭颗粒有 ______ 、 ________ 、 ______ 三种形式
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反馈参考答案：
举一反三
【简答题】It is New Year’s Day today. Many stores in our city are at great sales. So Lisa’s mother and Lisa go shopping in Justin Store. First they buy clothes. The clothes in the store are not expensive（昂贵的）. ...
【单选题】brother is in Grade Seven..
A.
Lisa's and Linda's
B.
Lisa and Linda
C.
Lisa's and Linda
D.
Lisa and Linda's
【单选题】Which of the following is NOT true about wind power?
A.
Wind was very expensive in the 90's.
B.
The turbines built in the 70's were fragile.
C.
Wind power still cannot compete with fossil fuels.
D.
Wind is still not favored today in America for its high cost.
【单选题】No one can exactly tell us what .
A.
does Mona Lisa’s smile mean
B.
Mona Lisa’s smile means
C.
Mona Lisa’s smile does
D.
does Mona Lisa’s smile
【单选题】Which of the following statements is true of wind power?.
A.
There is plenty of wind to provide the world's entire energy needs.
B.
It is the most rapidly growing type of electricity production.
C.
It may be more expensive.
D.
All of the above.
【简答题】Scientists are studying and developing solar power, wind power, and hydroelectric______to replace oil.
【单选题】听力原文：John and Lisa's skills are complementary, she's good at routine work while he's great at handing emergencies. Together they make a great team. (26)
A.
John and Lisa are team members.
B.
John and Lisa are good at handling emergencies.
C.
John and Lisa are good at routine work.
D.
John and Lisa are good partners when working together.
【单选题】The possibilities for ______ energy sources, including solar power, wind power, geothermal power, water power and even nuclear energy promise greatly to the earthlings.
A.
altitude
B.
alternate
C.
alternating
D.
alternative
【简答题】Wind power are being used to generate (electronic) ______ .
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