考博考试

【单选题】Humans should not develop their economy at the ______ of the ecological environment.
A、destruction
B、pollution
C、expense
D、mercy

网考网参考答案：C
网考网解析：
at the expense of在损害…情况下，以…为代价。at the mercy of 受…的支配。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>