A.-204000 | B.-0.000204 | C.-204.000 | D.-20400 |
A.120×10-9m | B.1.2×10-6m | C.1.2×10-7m | D.1.×10-8m |
A.0.618×10-2 | B.6.18×10-3 | C.61.8×10-4 | D.618×10-5 |
A.1.08×10-9 | B.1.08×10-8 | C.1.08×10-7 | D.1.08×10-6 |
A.1.7×10-7吨 | B.1.7×107吨 | C.1.7×108吨 | D.1.7×109吨 |
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