题目内容
1.20×108的原数是( )
| A.120000000 | B.1200000000 |
| C.12000000 | D.12000000000 |
1.20×108=120000000.
故选:A.
故选:A.
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题目内容
| A.120000000 | B.1200000000 |
| C.12000000 | D.12000000000 |