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

Bob is a good boy at school. He always obeys class ________. He often listens to the teacher ________ and ________ actively. He never eats or makes ________ in class. And he can always hand ________ his homework ________ time. At home, Bob is also a good boy. He always goes home early ________ school. And he usually helps his mother ________ housework. He never ________ a mess in his room. In the evening, he goes to bed early and never reads ________ bed. We should learn from him.

1.
A.a ruleB.rulesC.rule
2.
A.careB.carefulC.carefully
3.
A.takesB.talksC.talk
4.
A.noiseB.soundC.voice
5.
A.onB.inC.at
6.
A.onB.inC.at
7.
A.afterB.beforeC.during
8.
A.doingB.doesC.to do
9.
A.makeB.makesC.making
10.
A.inB.onC.at
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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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