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【简答题】
已知R1=R2=2Ω,图示电路中 a 、 b 端的等效电阻Rab=
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反馈参考答案：
举一反三
【单选题】【图片】Refer to Figure 1-3. The price paid by buyers after the tax is imposed is
A.
$8.
B.
$10.
C.
$14.
D.
$18.
【单选题】Refer to Figure 4-1. What is the equilibrium quantity in this market?
A.
5 units
B.
7.5 units
C.
10 units
D.
The equilibrium quantity cannot be determined from this graph.
【单选题】Refer to Figure 2-1. If this economy devotes all of its resources to the production of clocks, then it will produce
A.
0 clocks and 35 candles.
B.
10 clocks and 25 candles.
C.
16 clocks and 0 candles.
D.
16 clocks and 35 candles.
参考解析：
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