单项选择题

Passage One

A．The moon formed from pieces of Earth’s crust.
B．The moon was struck by another planet.
C．The moon’s composition resembles that of Mars.
D．The moon’s mineral content has changed over time.
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单项选择题
A．To introduce someone who has researched blushing.B．To illustrate the benefit of a public-speaking glass.C．To give an example of someone who blushes easily.D．To explain a way to overcome blushing.
A．To introduce someone who has researched blushing.
B．To illustrate the benefit of a public-speaking glass.
C．To give an example of someone who blushes easily.
D．To explain a way to overcome blushing.
单项选择题
A．Walking on the Moon is just like on Mars.B．The Moon gravity offers more traction and Stability.C．The divers need more oxygen at Martian gravity.D．Walking on Mars will be relatively easier.
A．Walking on the Moon is just like on Mars.
B．The Moon gravity offers more traction and Stability.
C．The divers need more oxygen at Martian gravity.
D．Walking on Mars will be relatively easier.
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