【题目】—Many people in big cities cannot enjoy life even though they have houses, cars and ideal jobs.
—Sub-health may partially ______ it．
A.stand for
B.call for
C.answer for
D.account for

【答案】D
【解析】句意：——大城市里的许多人即使有房子、汽车和理想的工作也不能享受生活。——亚健康可能会部分解释它。A代表；B需要；C回答；D说明（原因、理由等）; 导致，故选D。