China has made ______ clear to the world that in the course of its development it seeks for both golden, silver hills and clean water, green mountains as well.
| A．this | B．that | C．it | D．One |
相关试题
You'd sound a lot more polite if you make a requesta question. 
| A． | in search of | B． | in the form of |
C． | in need of | D． | in the direction of |
The questionnaire takes ______ ten to fifteen minutes to complete and can be used along with the assessment interview.
| A．mainly | B．punctually | C．approximately | D．precisely |
As there is less and less coal and oil, scientists are exploring new ways of making use of ______ energy, such as sunlight, wind and water for power and fuel.
| A．primary | B．alternative | C．instant | D．unique |
In our class, when the bell rang and the teacher closed his book, it was a ______ for everyone to stand up.
| A．signal | B．chance | C．mark | D．measure |
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