A.2 | B.9 | C.10 | D.无数 |
A.6.69 | B.6.70 | C.6.7 | D.6.695 |
A.9.94 | B.9.895 | C.9.88 | D.9.84 |
A.7.99 | B.8.04 | C.7.95 |
A.8.504 | B.8.499 | C.8.509 | D.8.495 |
A.155000 | B.149999 | C.154999 | D.154000 |
A.“5”表示5个 | B.读数时,只读一个“0” |
C.小数部分的“0“可以省略 | D.这个数精确到千分位约是0.040 |
A.10.0 | B.11.0 | C.10.9 |
A.4.879 | B.4.878 | C.4.880 |
A.1.195 | B.1.299 | C.1.188 |