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【单选题】
The following table shows the marginal costs for each of fourfirms (A, B, C, and D) to eliminate units of pollution from their productionprocesses. For example, for Firm A toeliminate one unit of pollution, it would cost $54, and for Firm A to eliminatea second unit of pollution it would cost an additional $67. Firm Unit to be eliminated A B C D First unit 54 57 54 62 Second unit 67 68 66 73 Third unit 82 86 82 91 Fourth unit 107 108 107 111 Table 10-5 Refer to Table 10-5. If the governmentcharged a fee of $69 per unit of pollution, how many units of pollution wouldthe firms eliminate altogether?A.
7
B.
8
C.
9
D.
10
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【单选题】—Could you please pass the book on the shelf to me ? —_____. [ ]
A.
You are welcome
B.
Yes , I could
C.
Certainly . Here you are
【单选题】秦简《田律》明确地记载，春二月不准捕鸟，不准抓野兽，不准砍树，到夏天七月份之后才开放。这反映社会主义核心价值观
A.
具有深厚的历史底蕴
B.
在我国古代就形成了
C.
能够提高国家文化软实力
D.
是增进社会团结和谐的最大公约数
【单选题】Some books are to be tasted , others swallowed and some few to be chewed and digested.
A.
This sentence contains simile.
B.
This sentence contains hyperbole.
C.
This sentence contains metonymy.
D.
This sentence contains metaphor.
【简答题】植物 响应 逆境的机理探讨 预习实验报告 实验结果
【简答题】8位补码表示的二进制数，其最小的数对应的十进制数值是( )
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