People's education printing plate seven times mathematics week-end through train answer

I only have several versions of the answer, the fourth edition, ABDCD.

-3

(-5-4) meters, 8. (25,+12,4 \ 3), (-3.14,-2.3.-0.05), 9. Incorrect 2. The absolute value of the negative number of ACCACCDBDCC033636 is equal to its opposite number 3. DDDDCBB。

1.4× 10 to the fourth power

0.26 Fifth Edition I, CCCDDDCBC II, DDDDCD

- 1

1 3. CDBC，2，3

2,-2

-2

82 four. BCBCCCBB 6th Edition BBDDCCCB 1\6

less than or equal to

thousands of

positive number

The sixth power of 3.0× 10

- 1 19.-7/20

-4

20.9

2 1.0 bar

20 10-a

a< 1

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