问题
选择题
Many developing countries are unwilling to pursue their economic development ______ destroying the environment despite there being several financial crises.
A．at the risk of
B．at the cost of
C．at the end of
D．at the mercy of
答案
答案：B
考查介词短语的辨析。at the risk of 冒着……的危险；at the cost of 以……为代价；at the end of在……的末端/尽头；at the mercy of听凭……的处置。句意：尽管存在金融危机，但许多发展中国家并不愿意以破坏环境为代价来追求经济的发展。