When he heard how well the new company was doing, he took a calc

When he heard how well the new company was doing, he took a calculated ______ and invested all his money in it.
A、venture
B、chance
C、opportunity
D、risk
【正确答案】：D
【题目解析】：venture n. 冒险旅行；chance n. 机会；opportunity n. 机会；risk n. 风险
take a risk 冒险，固定搭配原意为：当他听说新公司经营得很好时，他冒了一定的风险，把所有的钱都投了进去。