单选题 Water makes up some 70 {{U}}percentage points{{/U}} of the body, and drinking enough water— either tap water or expensive mineral water—will ensure that the body is properly lubricated and flushed.

A、 per-cent
B、 per capita
C、 percent
D、 percentage

【正确答案】 C

【答案解析】[分析] 习惯搭配表百分比用“…percent of +noun”，percentage points是“百分点”的意思。