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【单选题】
与现有电网相比，智能电网体现出 的显著特点。A.
电力流、信息流和业务流高度融合
B.
对用户的服务形式简单、信息单向
C.
电源的接入与退出、电能量的传输等更为灵活
D.
以上都不是
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举一反三
【单选题】Sailcloth & More currently produces boat sails and is considering expanding its operations to include awnings for homes and travel trailers. The company owns land beside its current manufacturing faci...
A.
-$785,000
B.
-$823,000
C.
-$835,000
D.
-$859,000
【单选题】What invention allowed the Ancient Chinese to build huge ships well before the rest of the world?
A.
Silk Sails
B.
Boat rudder
C.
Waterproof Lacquer
D.
Compass
E.
Iron casting
【单选题】Sailcloth & More currently produces boat sails and is considering expanding its operations to include awnings for homes and travel trailers. The company owns land beside its current manufacturing faci...
A.
-785000
B.
-823000
C.
-835000
D.
-859000
E.
-883000
【单选题】On the Indian Ocean Zac struggled two days and nights because ________.
A.
heavy wire was hurting the mast
B.
the mast was in danger of breaking
C.
wild waves tossed the boat
D.
the wind whipped at the sails
【单选题】听力原文： About a hundred years ago, the people of London were amazed to see an extraordinary boat come sailing up the Thames River The boat had four-cornered sails made of mats, big wooden eyes on the bo...
A.
By sailing round Europe.
B.
By sailing completely round the world.
C.
By sailing through the Arctic Ocean.
D.
By sailing round the tip of Africa.
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