单项选择题

After reading this passage, you can conclude that ______.

A．mountain building is a rare occurrence
B．mountain building is going on all the time
C．many people die in earthquakes every year
D．mountain climbing is an excellent extreme activity

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单项选择题

The word loftier in the second paragraph is closest in meaning to ______.

A．steeper
B．older
C．higher
D．lower

单项选择题

What is the main idea of the second paragraph

A．People are mysteriously attracted to mountains.
B．People can climb different mountains every year.
C．Some mountains rise higher all the time.
D．Old, new, and ancient mountains exist.