学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.40
所属科目:小学英语
看图选句子。
(  ) 1. A. I’m hungry.       (  ) 2. A. Tigers eat meat.
B. I’m thirsty.                       B. Bears eat fish.
(  ) 3. A. Cows live on the farm.
B. Pandas live in a forest.  
(  ) 4. A. I like fruit.
B. I don’t like fruit.   
(  ) 5. A. My favourite food is noodles.
B. Rice is okay.   
(  ) 6. A. I’ll take ten apples.
B. I’ll take two hamburgers.   
(  ) 7. A. In the morning, I have breakfast.
B. In the evening, I have dinner.   
(  ) 8. A. I’d like some rice and fish.
B. I like noodles for breakfast.  
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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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