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第38页

信息发布者：

A

C

B

B

D

8.73

10

1

0.9

8a²

0.4m

=21.4-5.4

=16

=0.648÷[0.9×0.6]

=0.648÷0.54

=1.2

=4.7-2.3×(1.6÷1.6)

=4.7-2.3×1

=4.7-2.3

=2.4

=28.6×10.1-28.6×0.1

=28.6×(10.1-0.1)

=28.6×10

=286

=22.61

=4.02

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