搜索
（____） 1. Where is Jenny?
A. In the classroom. B. On the playground. C. In the library.
（____） 2. Whose crayon is it?
A. It's Danny's. B. It's Jenny's. C. It's Kim's.
（____） 3. How many pencils do you have?
A. Thirty. B. Thirteen. C. Nineteen.
（____） 4. How are you?
A. Very well. B. Very good. C. Not bad.
（____） 5. What's his name?
A. Tom. B. Jack. C. John.
同类型试题
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
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
