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The Principal and the Popcorn Popper
Spring was approaching. Principal （校长）Peters was wandering in the empty part of the huge school yard when the students' request flashed through his mind again. It couldn't be better to eat the cabbages, carrots, or eggplants planted by themselves. But how to raise money for seeds and tools?
The topic came up at the teachers' meeting. Teachers suggested various means of collecting money with enthusiasm； one teacher suggested, “We have a popcorn popper （爆米 花机）in the teachers' lounge （休息室）.How about kids making popcorn to sell?”
When the popcorn proposal reached the students, they jumped with joy. Agreement was reached -every Thursday, in their labor course, by selling popcorn for 25 cents a bag, they could enjoy a snack while raising money to buy seeds and tools for their garden.
Soon the first Thursday came. Principal Peters got to his office as usual just right next to the teachers' lounge. Hearing popping sound, he smiled, for it meant the promise of the potential garden. But it was REALLY loud. He wrapped a scarf around his head to block his ears. When the first Thursday was over, he breathed a sigh of relief. But the next Thursday, popping sound happened again. This time, he had brought earplugs. The day, it seemed, would last forever. But for the kids' garden dream, he put up with it willingly.
The following Thursdays witnessed Principal Peters attempting to pile gym mats against his office walls and asking the fifth grade to practice for their concert in the hallway outside his office. The "unbearable" popping sound seemed to have taken root in his head! But for the kids' vegetable garden dream, he put up with it willingly.
On the 11th Thursday, he went to the teachers' lounge again to see how much money was still needed. Seeing the Principal coming with a hard-hidden painful expression, the students responded cheerfully, “Only with 41 dollars our garden dream will come true.” Hearing this, Principal Peters left without saying anything.
注意:1.续写词数应为150左右；
2.请按如下格式在答题卡的相应位置作答。
Shortly afterward, Principal Peters came back with 41 dollars.
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“POPCORN", the cute students answered the Principal's question jokingly.
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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
