学进去-教育应平等而普惠
试题
类型:词汇选择题
难度系数:0.65
所属科目:小学英语
给划线部分选择正确的汉语意思。
1.He has a big mouth. (       )
A.一双大手B.—张小嘴C.—张大嘴
2.I’m going to the Great Wall. (       )
A.长城B.紫禁城C.颐和园
3.I had breakfast this morning. (       )
A.参加B.在……以前C.吃早餐
4.We are going to watch cartoons. (       )
A.看电视B.看电影C.看卡通片
5.I had a wonderful summer vacation. (       )
A.寒假B.暑假C.国庆节
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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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