单项选择题

A. Why species don’t avoid extinction by adapting.
B. Why species become extinct at the rate they do.
C. Why humans aren’t extinct.
D. How many species aren’t extinct.
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单项选择题
A. They should meet another time this week. B. She won’t be busy this week. C. She is angry that the man doesn’t wait for her. D. There won’t be another time available for them in this week to meet.
A. They should meet another time this week.
B. She won’t be busy this week.
C. She is angry that the man doesn’t wait for her.
D. There won’t be another time available for them in this week to meet.
单项选择题
A. Factors that affect the ability to memorize. B. The influence of childhood memories to adulthood. C. A proposal for future psychological research. D. Benefits of a busy lifestyle.
A. Factors that affect the ability to memorize.
B. The influence of childhood memories to adulthood.
C. A proposal for future psychological research.
D. Benefits of a busy lifestyle.
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