Are you 1. a________happy during your vacation? Many people may say "yes". But last week I had a bad vacation. My parents and I 2. t________a bus to the Great Wall. We got on the bus at 7:00 a.m. But on the half 3. w________, it broke down. After an hour, it started again. It was 4. n________11:00a.m. when we finally got to the Great Wall. We were excited when we 5. s________on the Great Wall. My father took out the camera and wanted to take some photos. But just then, it started to rain. We had to go 6. b________to our bus. When we wanted to eat 7. s________, we found we left our food bag at home.
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同类型试题
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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
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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
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