What is the main idea of the passage？
A. Ice covers have been diminishing for the past decade.
B. It is DOD drone that monitors geologic changes.
C. Steiner"s annual voyages bear witness to the Arctic crisis.
D. Ice-melting is creating an accelerating warming loop.
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Which of the following is INCORRECT according to the passage？
A. The author lived 12 miles away from her daughter"s school.
B. The author lives in a quiet town without traffic jam.
Cars change their perception of what is possible, and of what they are entitled to.
D. It"s hard to know the moment of driving their child to school becoming the norm.
According to the passage, it is implied that Airbnb______.
A. is a large-scale hotel chain in America
B. has just moved to San Francisco
C. is not worth investing
D. is expanding its business
Which of the following is INCORRECT according to the passage？
A. Voice communication becomes almost free eventually.
B. Your children can play interactive games in the car.
C. Spatial reuse of frequencies will be in trouble.
D. Lamppost could monitor pollution and air flow.
The word "ruled" in Paragraph 3 is closest in meaning to______.
A. decreed
B. governed
C. prevailed
D. paralleled
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