半成品
参考答案：
当原料在经过多个工序的处理过程中，其任意一个中间工序所得到的产品。
It only __________ him 20 minutes __________ to his office every day.
A. takes; to drive
B. took; drive
C. takes; drive
D takes took
列方程，并求解。
一个数的10倍比它本身大27.9，这个数是多少？
