单项选择题

What's the purpose of the conference

A．To give students a chance to debate international affairs and to mirror the real life business of the UN.
B．To enlarge students' fields of vision.
C．To learn about other cultures.
D．To learn about how to portray their own.

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热门试题

单项选择题

What is the characteristic of the Martian surface according to observations over the past 20 years

A．Remaining stable all the time.
B．Appearing bright red.
C．Looking dark most of the time.
D．Changing from bright to dark or vice vers

单项选择题

How is the image of the north polar cap of Mars

A．Vague.
B．Clear.
C．Cannot be seen.
D．Barely visibl