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Ann: Welcome! This is our classroom.
Bill: 1． How many students are there in our class?
Ann: 2．
Bill: Where is the library?
Ann: 3． This way, please.
Bill: Is that the art room?
Ann: 4． It’s the computer room.
Bill: Great! I like computer class.
Ann: Me too. 5．
Bill: It’s 15:00.
Ann: 6． Let’s go!
| A．It’s on the second floor. |
| B．Oh, it’s time for PE class. |
| C．No, it isn’t. |
| D．Wow, it’s so big! |
| E．Forty-one. |
| F．What time is it now, Bill? |
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
