单项选择题

A．Write an astronomy paper.
B．Sign the form.
C．Decide which course to add.
D．Look for the astronomy professor.
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单项选择题
A．Men from Mars or space adventure.B．The results of technical developments on science.C．The results of technical developments on human mind.D．None of above.
A．Men from Mars or space adventure.
B．The results of technical developments on science.
C．The results of technical developments on human mind.
D．None of above.
单项选择题
A．She can hear them crying very loudly at the zoo.B．She’s heard them panting and was told it was laughter.C．She’s read about it from Darwin.D．She used to work at a zoo.
A．She can hear them crying very loudly at the zoo.
B．She’s heard them panting and was told it was laughter.
C．She’s read about it from Darwin.
D．She used to work at a zoo.
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