解「一步」一次方程：测验(2)

GeoGebra 命令及参数

1. Remove(Sequence[i, i, -9, 9], {0, 1}) → list1
2. RandomElement(list1) → a
3. RandomElement(list1 \ {-1}) → k
4. RandomElement({"a", "b", "m", "n", "p", "k", "x", "y"}) → var, "p"
5. Random(1, 4) → qtype
6. Shuffle({(0, 0), (5, 0)}) → listPosition, {(0, 0), (5, 0)}
7. If(qtype ≟ 1, text1correct, qtype ≟ 2, text2correct, qtype ≟ 3, text3correct, qtype ≟ 4, text4correct) → textCorrect
8. If(qtype ≟ 1, text1wrong1, qtype ≟ 2, text2wrong1, qtype ≟ 3, text3wrong1, qtype ≟ 4, text4wrong1) → textwrong1
9. If(qtype ≟ 1, text1wrong2, qtype ≟ 2, text2wrong2, qtype ≟ 3, text3wrong2, qtype ≟ 4, text4wrong2) → textwrong2
10. If(qtype ≟ 1, text1wrong3, qtype ≟ 2, text2wrong3, qtype ≟ 3, text3wrong3, qtype ≟ 4, text4wrong3) → textwrong3
11. Shuffle({A, B, C, D}) → listPos, {(0.6, 0.2), (5.4, 0.2), (5.4, -2.8), (0.6, -2.8)}
12. Circle(P - (0.8, 0.1), 0.5) → d