题目内容

What do we know about tree climbing from the passage?

A. People compete to see who can climb to the top first.
B. It favors the experience of enjoying nature.
C. It is a kind of extreme sport and needs a lot of effort.
D. People view it as a challenge to climb the tallest tree in a forest.

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Brumbaugh kneels on the ground before climbing trees to ___________.

A. beg for the safety of climbing
B. expect to climb faster than her husband
C. show respect for the tree
D. ask for permission of her husband

Sophia Sparks prefers the term “inspirational tree climbing” because it ____________.

A. provide people with more chances to play outside
B. bring a lot of pleasure to life
C. deepens personal love between each other
D. makes people realize they should protect trees

What’s the best title for the passage?

A. Tree-climbing travelling
B. Slow travel movements
C. Dangers of climbing
D. Respect for nature

下列哪组分子是由极性键组成的非极性分子

A. CH4 CO2
B. CH4 NH3
C. NH3 H2O
D. N2 O2

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