学进去-教育应平等而普惠
试题
类型:完形填空
难度系数:0.65
所属科目:小学英语

It’s Sunday today. Some children ______ to a field trip ______ their teacher. Look, some are ______ an experiment. Mike is ______ a big tree. He is ______ butterflies. Wu Binbin and Amy are ______ the woods. They are ______ up leaves. Where is John? Oh, he is ______ insects.

1.
A.goB.goesC.going
2.
A.andB.withC.or
3.
A.doB.doingC.does
4.
A.inB.onC.under
5.
A.catchesB.catchingC.catch
6.
A.atB.inC.with
7.
A.pickingB.picksC.pick
8.
A.watchB.watchesC.watching
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y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

用户名称
2019-09-19

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

用户名称
2019-09-19
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