The girl studied very hard to prepare for the final exams. As a result, she passed the exams _______ her health.
A、at the expense of
B、in the light of
C、according to
D、under the help of
【正确答案】：A
【题目解析】：at the expense of以…为代价；由…支付费用。句意：这个女孩努力学习为期末考试做准备。结果，她通过了考试，却损害了健康。