∵|-9|=9,
∴|-9|的平方根是±3,
(-5)2=5,
∵327=3,
∴327的立方根是33,
故答案为:±3,5,33
Seated himself in a chair, he began to look through the paper and suddenly he heard a
A B C D
knock at ther door.
标准时间=()=0.129秒。