| A．3 | B．4 | C．6 | D．12 |
| A．800.06 | B．65.001 | C．305.07 | D．20.37 |
| A．20.100 | B．200.01 | C．20.001 | D．2.010 |
| A．10.08 | B．4.080 | C．102.006 |
| A．9 | B．10 | C．无数 |
| A．270.50 | B．207.05 | C．2050.7 | D．2700.55 |
A． | B． | C． | D． |
| A．50.09 | B．4.005 | C．7.0900 |
| A．607.03 | B．670.30 | C．600703 | D．607.30 |
| A．0.048 | B．4.8 | C．0.48 |
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