| A．780 | B．7.80 | C．7.08 |
| A．155000 | B．149999 | C．154999 | D．154000 |
| A．5.007 | B．0.507 | C．5.070 |
| A．0.1 | B．0.99 | C．0.9 |
| A．扩大10倍 | B．缩小10倍 | C．扩大100倍 |
| A．6.3 | B．6.30 | C．6.03 |
| A．4.03 |
| B．3.4 |
| C．0.43 |
| D．4.300 |
| A．3804 | B．0.3804 | C．0.03804 |
| A．0.6＞0.56＞0.506＞0.065＞0.056 | B．0.056＜0.065＜0.506＜0.56＜0.6 |
| C．0.6＜0.56＜0.506＜0.056＜0.065 | D．0.056＜0.065＜0.56＜0.506＜0.6 |
| A．0.008 | B．0.08 | C．0.800 |
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