锚索参数的确定原则：最小锚固长度。水泥（）浆锚固（）m，树脂锚固（）m。
参考答案：砂；≥3.5；≥1.5
—Which of the two jackets will you take, Jane?
—I’ll take ________. I have spent all my money buying the books.
A. both B. either C. neither
