单项选择题

In recent years much more emphasis has been put ______ developing the students' productive skills.

A. onto
B. in
C. over
D. on

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单项选择题

Question 25 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question. Now, listen to the news.

A．Tehran’s view on its own nuclear weapons.
B．the debate on Iran’s nuclear weapons.
C．the idea of the U.S. and Europe about Iran.
D．the exports’ disagreement on nuclear weapons.

单项选择题

If a substance is dissolved in water or heated, it may ______ a gas. A give into B. give over C. give off D. give away

If a substance is dissolved in water or heated, it may ______ a gas.
A give into B. give over C. give off D. give away

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