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This is my first day in my new school. In the morning, I help my new teacher Miss Read to put some new textbooks into a big box. And then I carry it to the classroom. The box is very heavy. A boy runs very fast to me. He is too fast that he can’t stop. Oh, dear. My box drops to the floor and the books are everywhere. What can I do? I want to cry. The boy says, “Sorry”, and he helps me to pick up all the books. “Who is he?” He is my new classmate. His name is Jim and he is from England. We are friends now.
1．Who is Miss Read?2．What’s in the box?
3．What’s in my hand?
4．Who is Jim?
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
