单项选择题

Jordan has taken 5 math tests so far this semester. If he gets a 70 on his next test, it will lower the average (arithmetic mean) of his test scores by 4 points. What is his average now（）

A. 74
B. 85
C. 86
D. 90
E. 94

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单项选择题
If 80% of the adult population of a village is registered to vote, and 60% of those registered actually voted in a particular election, what percent of the adults in the village did NOT vote in that election（）

A. 20
B. 40
C. 48
D. 50
E. 52
问答题
Select the sentence that mentions a specific moral dilemma resulting from the use of a memory-altering drug.
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