單項選擇題
A.1 B.2 C.3 D.4
A.26980 B.27980 C.28980 D.29980
A.15620 B.15640 C.15660 D.15680
A.60000 B.43200 C.37800 D.35600
A.200 B.160 C.120 D.80
A.1435 B.1440 C.1445 D.1450
A.5 B.8 C.10 D.12
A.9 B.11 C.13 D.15
A.4.7 B.4.8 C.4.9 D.5.0
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