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| A. You can put the lemon in the water. B. I'd like oranges, bananas and pears. C. I like watermelons. D. How many watermelons are there? E. OK! |
Danny: 1．
Jenny: So many delicious fruits! What would you like to eat?
Danny: 2．
Jenny: Do you like lemons（柠檬）?
Danny: I don't eat lemons before（以前）.
Jenny: 3．
Danny: OK. What do you like?
Jenny: 4．
Danny: Me, too.
Jenny: 5．
Danny: Fifteen.
Jenny: Let's take a big one.
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
