单项选择题

Passage Three What are the automobile engineers trying to do

A．Improve the batteries of electric cars.
B．Increase the number of electric cars.
C．Design a new device for electric cars.
D．Look for new ways to improve safety.
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单项选择题
According to the first paragraph, some women attributed lapses in memory or concentration to ______.
A．their pregnancy
B．the "baby brain"
C．an unscientific cause
D．changes to their brains
单项选择题
According to Mike Levy from Griffith University, ______.
A．learning online is better than attending a class
B．online courses cost less than college courses
C．it’s better to choose courses with human contact
D．it’s not worth attending Internet-based programs
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