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电流发热的功率公式为P=I 2 R，其中P为电功率（单位：W），I为额定电流（单位：A），R为电阻（单位：Ω）。若一家电铭牌上的额定功率为1800W，电阻为40Ω，求这个家用电器的额定电流。（精确到0.1A， ≈2.236）
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【简答题】—____ bread do you need? —A kilo, ple。 A. How many B. How often C. How much D. How long
【单选题】Although one might not think so from some of the criticism of it, advertising is essential to the kind of society in which people in the United Kingdom, and a very considerable proportion of the world...
A.
every potential consumer in the world
B.
large countries in the world
C.
people with a high standard of living
D.
a large number of people in the world
【单选题】Although one might not think so from some of the criticism of it, advertising is essential to the kind of society in which people in the United Kingdom, and a very considerable proportion of the world...
A.
every potential consumer in the world
B.
large countries in the world
C.
people with a high standard of living
D.
a large number of people in the world
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【简答题】Text 2 Although one might not think so from some of the criticism of it, advertising is essential to the kind of society in which people in the United Kingdom, and a very considerable proportion of th...
【单选题】Although one might not think so from some of the criticism of it, advertising is essential to the kind of society in which people in the United Kingdom, and a very considerable proportion of the world...
A.
every potential consumer in the world
B.
large countries in the world
C.
people with a high standard of living
D.
a large number of people in the world
【单选题】根据下列文章,请回答 26～30 题。 Text 2 Although one might not think so from some of the criticism of it, advertising is essential to the kind of society in which people in the United Kingdom, and a very considera...
A.
every potential consumer in the world
B.
large countries in the world
C.
people with a high standard of living
D.
a large number of people in the world
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