单项选择题

A．They read poetry aloud.
B．They delivered a speech.
C．They took objective tests.
D．They exchanged opinions with some people in a particular fiel
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单项选择题
A．The man’ s test.B．The woman’ s research paper.C．Go swimming over at the student center.D．Plans for the evening.
A．The man’ s test.
B．The woman’ s research paper.
C．Go swimming over at the student center.
D．Plans for the evening.
单项选择题
Lens design and chess playing are similar in that______.
A．the final goal and the means by which it can be reached are known
B．perfect solutions to a problem can be found
C．any one decision at any point along the way to the goal can bring numerous possible results
D．both A and C
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