【单选题】Which monarch serves as the sole source of political power ?
A、Absolute monarchy
B、Constitutional monarchy
A、Absolute monarchy
B、Constitutional monarchy
A、Autumn Waters
B、Swimming in a Waterfall
C、Catching Cicadas
D、Steering a Boat
B.the conclusion of the argument
C.an introduction to another topic
D.a comparison between two views
A、achieve competitive advantage. 获取竞争优势
B、maintain competitive advantage. 保持竞争优势
C、eliminate competitive advantage 限制竞争优势
D、achieve and maintain competitive advantage. 获取并保持
A、Raising temperature
B、Use of short primers
C、Adjusting the concentration of sodium ions
D、Using polymerase with proof reading activity
Write an essay of about 120 words on "The Impact of Television on Children". Make references to the following points:
1) Television has become part of our life.
2) The good and bad effects of television on children.
3) How to avoid the bad effects.
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