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（_____） 1. How many students are there in the class?
A. 18. B. 20. C. 38
（_____） 2. Who likes writing stories?
A. Nancy. B. Nancy’s brother. C. A and B.
（_____） 3. What can you see in the tree?
A. A bird. B. Two birds. C. Some cats.
（_____） 4. Where are Su san and her friend?
A. In the classroom. B. In the park. C. At home.
（_____） 5. What is it?
A. It’s a panda. B. It’s a duck. C. It’s a bear.
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
