题目信息
In a certain learning experiment, each participant had
three trials and was assigned, for each trial, a score of
either -2, -1, 0, 1, or 2. The participant's final score
consisted of the sum of the first trial score, 2 times
the second trial score, and 3 times the third trial
score. If Anne received scores of 1 and -1 for her first
two trials, not necessarily in that order, which of the
following could NOT be her final score?
A:-4
B:-2
C:1
D:5
E:6
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已选答案：
正确答案：
E:6
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