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【简答题】
煤气点火时为什么要先点火后开煤气？
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反馈参考答案：
举一反三
【单选题】What does the woman ask the man to do?
A.
She asks him to stand up.
B.
She asks him to sit down.
C.
She asks him to wait.
【单选题】What does "clamp down" mean as in "the government has ... clamped down on polluting factories"?
A.
惩罚
B.
严查
C.
责令
D.
整治
【单选题】What does the library NOT permit students to do?
A.
Reading the E-books in the library.
B.
Downloading the E-books from the library.
C.
Using the E-library to find information.
D.
Borrowing the books they find in the E-library.
【单选题】What is not true of Dow?
A.
It is the only one indicator of the health f the US ecoomy.
B.
A rising stock market is usually seen as a good economic sign
C.
A rising stock market shows investors are optimistic about the direction the economy.
D.
Dow hit a high note 20,000 for the first time ever.
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