修筑桩柳子堤时，木桩后绑扎（）、铺放秸料，然后分层铺土夯实。
A.铅丝
B.麻绳
C.钢筋
D.柳把或散柳
参考答案：D
把一个小数扩大100倍后，小数点再向左移动一位，得72.3．那么原来这个小数是______．
This is the old building ______ twenty years ago.[ ]
A. grandma lived
B. grandma lives
C. that grandma lived
D. that grandma lived in
