皮皮学，免费搜题
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【简答题】
请把下列哺乳动物与它们相应的特点合理搭配起来： （1）鸭嘴兽 ①是善于在空中飞行的哺乳动物 （2）蝙蝠 ②是生活在海洋里的哺乳动物 （3）袋鼠 ③是最古老的卵生哺乳动物 （4）猩猩 ④是有育儿袋的哺乳动物 （5）海豚 ⑤是与人类亲缘关系最近的哺乳动物
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皮皮学刷刷变学霸
举一反三
【单选题】Eric produces jewelry boxes. If the demand for jewelry boxes is elastic and Eric wants to increase his total revenue, he should
A.
increase the price of his jewelry boxes.
B.
decrease the price of his jewelry boxes.
C.
not change the price of his jewelry boxes.
D.
None of the above answers is correct.
【单选题】You produce jewelry boxes. If the demand for jewelry boxes is elastic and you want to increase your total revenue, you should
A.
increase the price of your jewelry boxes.
B.
decrease the price of your jewelry boxes.
C.
not change the price of your jewelry boxes.
D.
None of the above answers are correct.
【简答题】等温线是指____温度下____与____之间所形成的曲线。等温线分____和____两种吸着等温线。
【单选题】—I want to wear some jewelry (珠宝首饰 ) . —Jewelry? Do you need jewelry? _____ ? [ ]
A.
Why not you wear some flowers
B.
Why don't you wear some flowers
C.
Why don't wear some flowers
D.
How about wear some flowers
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