学进去-教育应平等而普惠
试题
类型:选内容补全对话
难度系数:0.65
所属科目:小学英语
从方框中选择合适的选项补全对话(有一项多余).
A. I have six.
B. Yes, I do.
C. Yes, they are.
D. No, they're goats.
E. Wow, it's so big!
F. There are six.
: Welcome to my farm.
: 1.
: Look! These are green beans.
: They are long. Are these tomatoes?
: 2. They are big and red.
: Are there any animals on your farm?
: Yes. This way, please.
: Are these sheep?
: 3.
: Do you have any cows?
: 4.
: How many cows do you have?
: 5.
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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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