单选题
The purpose of Earth Day is ______.
A、
to help people memorize the earth
B、
to help people to learn how to protect the earth
C、
to unite all the people on the earth
D、
all of the above
【正确答案】
B
【答案解析】
本题为细节辨认题.由第一 段"The purpose of the holiday, which we celebrate every year on that date, is to help people learn how to protect the planet Earth"可以得出正确答案为B
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