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1. A: Carl, you eat too ________ sweets. They are ________ for your teeth.
B: Thank you ________ your advice.
2. A: Chris, did you ________ Bob in Xinjiang last July?
B: Yes, I stayed ________ him when I was there.
3. A: There is ________ rain in some areas in north west China.
B: So we had ________ teach them how to save water.
4. A: My brother ________ much frozen food and fried food every day.
B: That's a bad ________. It will make him ________.
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
