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One day, a little boy comes into a shop and says to the shop assistant (店员), “I want to buy five exercise books of 2 yuan each (每一个) and 3 pencils of 1 yuan each. How much are they?”
The shop assistant thinks for a minute. Then she says, “13 yuan.” “If (如果) I give you twenty yuan, how much money will I get back?” “You will get seven for change. Here you are. These are the things you want.”
“No, thank you. I don’t want to buy anything,” the boy says politely. “This is my math homework. Thank you very much.”
根据材料内容选择最佳答案。
1．The story happens (发生) ________.
| A．in a shop | B．at a mall | C．in a supermarket | D．at school |
| A．three pencils | B．some books | C．nothing | D．his homework |
| A．10 | B．3 | C．7 | D．0 |
| A．交换 | B．零钱 | C．改变 | D．金钱 |
| A．bad | B．clever | C．kind | D．nice |
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
