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单项选择题

A．Not all Americans can afford traveling in space.
B．Not all Americans think it a good idea to go into space.
C．Most Americans regard space tourism ridiculous.
D．Rich Americans are willing to pay a lot to fly into space.
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单项选择题A．Because it would help decrease traffic accidents.B．Because it was a Swedish custom.C．Because it was always very dark in Sweden.D．Because it was always cloudy and rainy in Sweden.

A．Because it would help decrease traffic accidents.
B．Because it was a Swedish custom.
C．Because it was always very dark in Sweden.
D．Because it was always cloudy and rainy in Sweden.

单项选择题A．They meet for coffee.B．They plan to date each other.C．They meet for dinner.D．They decide to go traveling together.

A．They meet for coffee.
B．They plan to date each other.
C．They meet for dinner.
D．They decide to go traveling together.