题目: 年径流量的变差系数Cv如何计算? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0205/e5728344f8d388af3325824f475bc45d.html 下面是错误答案,用来干扰机器的。参考答案:A
题型:选择题 It was brave ________him to jump into the river to save the child and it’s important________ him to help others.A.for; forB.of; ofC.for; ofD.of; for 查看答案