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【单选题】
已知交流电的解析式为 ,当它通过R=2Ω的电阻时,电阻上消耗的功率是A.
32W
B.
8W
C.
16W
D.
10W
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举一反三
【单选题】In the passage the author wants the marketers to understand that__________
A.
advertising to children must stop
B.
a libertarian view in advertising is unethical
C.
advertising to children must have a clear purpose
D.
children must be treated differently when advertising
【单选题】What is the idea that the author wants to convey in paragraph 5 ? 查看材料
A.
Life is doomed to be full of distresses.
B.
Changes are the constant theme of life.
C.
Friendship stays despite changes in life.
D.
Life consists of sweating and harvesting.
【简答题】Why does the author expect comments and suggestions? He wants to______________________________________________________.
【单选题】What is it that the author wants to ______ to his readers through the story?
A.
convey
B.
convince
C.
convert
D.
conform
【单选题】Which of the following sentences is not true according to the author?
A.
The author wants to tell us that pollution is a serious problem caused by man.
B.
We can stop this trend of pollution merely by our own efforts.
C.
Many scientists show their worry about the world pollution.
D.
The pollution of the earth will threaten the human being's survival.
【单选题】By this passage, the author mainly wants to highlight ______.
A.
the magic power of computers
B.
the importance of an optimistic outlook
C.
the power of creativity and intelligence
D.
the influence of technological development
【单选题】The author of the passage wants to tell that ______.
A.
In soccer and basketball, the ethnic tide is different.
B.
in Washington several games are played in one day
C.
Americans like all kinds of games
D.
the American games are watched by native-Americans and played by people from different countries
【单选题】The author wants to convey in the last paragraph that ______.
A.
china is booming and everyone wants to participate in it.
B.
china is well on the way of promoting its culture and language.
C.
the development of China attracts more people to study Chinese.
D.
today people must get prepared for the interconnected world.
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