Someveryinterestingtechnologiesarebeingdevelopedatthemo...
問題詳情:
Some very interesting technologies are being developed at the moment. The first is a jacket created ___41___ the Electric Wear company. The smart jacket has been developed this year. It ___42___ (include) a built-in mobile phone and an MP4 player.
The ___43___ (two) is a power-free fridge. It ___44___ (invent) by a farmer from France. To keep fruit and vegetables fresh for three weeks, only two clay ___45___ (pot) and some wet sand are used.
Scientists say that studies of natural plastic have been completed and that ___46___ (vary) plastic materials will be produced ___47___ (immediate). The natural plastic will be made from beans, thus ___48___ (mean) less rubbish.
Last but not least, it has been announced that ___49___ new kind of washing machine has been developed. Clothes are cleaned without liquid soap or washing powder. It is believed ___50___ the new products will sell well in the future.
【回答】
41. by 42. includes
43. second 44. was invented
45. pots 46. various
47. immediately
48. meaning
49. a 50. that
知識點:語法填空
題型:未分類
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一個質量為4kg的物體靜止在足夠大的光滑水平地面上.從t=0開始,物體受到一個大小和方向週期*變化的水平力F作...
問題詳情:一個質量為4kg的物體靜止在足夠大的光滑水平地面上.從t=0開始,物體受到一個大小和方向週期*變化的水平力F作用,力F的變化規律如圖所示.則( )A.t=2s時物體沿負方向運動的位移最大B.t=4s時物體運動的位移達最小值C.每個週期內物體的速度變化為一定值D.從t=0開...
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如圖,形狀相同、大小相等的兩個小木塊放在一起,其俯檢視如圖所示,則其主檢視是( ).
問題詳情:如圖,形狀相同、大小相等的兩個小木塊放在一起,其俯檢視如圖所示,則其主檢視是( ).【回答】D知識點:三檢視題型:選擇題...
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用若干個體積為1的正方體搭成一個幾何體,其正檢視、側檢視都是如圖所示的圖形,則這個幾何體的最大體積與最小體積的...
問題詳情:用若干個體積為1的正方體搭成一個幾何體,其正檢視、側檢視都是如圖所示的圖形,則這個幾何體的最大體積與最小體積的差是()A.2B.3C.4D.5【回答】解析:由正檢視、側檢視可知,此幾何體的體積最小時,底層有5個小正方體,上面有2個小正方體,共7個小正方體;體積最大時,底...
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