And if one received a grape without having to provide her token in exchange at all, the other either tossed her own token at the researcher or out of the chamber, or refused to accept the slice of cucumber.
【析句】本句是一个是由if 引导的条件状语从句，主句是the other slice of cucumber，其中包括三个并列的谓语成分，讲述了猴子的三种反
应：一tossed her own token at the researcher，二(tossed her own token)out of the chamber，三refused to accept the slice
of cucumber。
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