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661.These two countries had three
发布:2024/12/12 21:30:2组卷:19引用:5难度:0.5662.When_______, the museum will be open to the public next month.( )
发布:2024/12/12 19:0:1组卷:191引用:3难度:0.8663.Though 3 D printing technology has been available for over two decades,it has not gone mainstream as hoped because of the high cost and slow print speed.But that may change soon,thanks to German sportswear manufacturer Adidas.On December 15,2016,the company revealed Adidas 3 D Runners,stylish sports sneakers featuring a 3 D printed midsole (鞋底夹层)that provides athletes with the extra cushioning (软垫)needed for optimal performance.
Unlike traditional midsoles,these are not a uniform foam(泡沫),but weblike structures with varied density to take into account the impact areas of the foot.This means that the mesh(网眼)is thicker in the shoe's front and back,both of which hit the ground hard when the athlete runs.A 3 D printed heel,put into the midsole,eliminates the need for traditional gluing or stitching (缝合).The shoe upper,made of Primeknit,allows for increased flexibility,stability,and protection in the impact areas.
Not surprisingly,the stylish,limited edition black training shoes that were only available for sale in New York City,London,and Tokyo and cost $333,were an instant hit and sold out within hours of their release.Though not affordable or available to the mass market,the radical shoes are an encouraging step in the right direction for more widespread use of the technology.
While printing 3 D objects may sound complicated,the process is relatively straightforward.Once the design is downloaded to a printer,a laser creates a layer of material,usually plastic or metal.Successive layers are deposited above one another and fused together until the product is complete.The technology can be used to build everything,from shoe soles to a microwave oven.There is currently even an effort underway to make a printer that is large enough to create the cement layers required to build a house.
(1)3 D printed midsoles are different from ordinary ones in that
A.they are made of uniform foam
B.they are held together with glue
C.the meshes are larger than ordinary ones
D.they are like webs with different density
(2)The underlined word "eliminate" in Paragraph 2 most probably means "
A.catch up with
B.get related to
C.be connected with
D.get rid of
(3)From Paragraph 3 we can infer that
A.the shoes sold well
B.the shoes were relatively cheap
C.the shoes can satisfy the need of the market
D.the company can mass produce the shoes
(4)What does the last paragraph mainly tell us?
A.What a 3 D printer is.
B.How a 3 D printer works.
C.How complicated the process is.
D.What size a 3 D printer is.发布:2024/12/12 18:0:2组卷:4引用:1难度:0.5664.Jim says we ______ stay in his house as long as we leave it clean and tidy.( )
发布:2024/12/12 17:30:2组卷:265引用:4难度:0.8665.各种各样的…
发布:2024/12/12 15:0:2组卷:111引用:26难度:0.7666.假如你是李华,你和几名留学生原定于本周末一起去植物园参观,但是由于一起意外事件,你受伤了,无法参加这次活动.请你给这次活动的组织者John写一封电子邮件,表示歉意.内容包括:
1.你非常期待这次活动
2.无法参加的原因
3.表示歉意
植物园 botanical garden
注意:
1.词数80左右;
2.可以适当增加细节,以使行文连贯.发布:2024/12/12 14:30:2组卷:17引用:4难度:0.5667.They are both very
发布:2024/12/12 13:0:1组卷:8引用:8难度:0.6668.Travelling along the old Silk Road is an interesting and
发布:2024/12/12 10:0:2组卷:21引用:2难度:0.7669.阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。续写的词数应为150左右。
When I was in seventh grade,I was a candy striper (护士助手)at a local hospital in my town.I volunteered about 30 to 40 hours a week during the summer.
Most of the time I spent there was with Mr.Green.He never had any visitors,and nobody seemed to care about his condition.I spent many days there holding his hand and talking to him,helping with anything that needed to be done.He became a close friend of mine,even though he responded with only an occasional hold of my hand.Mr.Green was in a coma (昏迷).
I left for a week for a vacation with my parents,and when I came back,Mr.Green was gone.I didn't have the courage to ask any of the nurses where he was,for fear they might tell me he had died.So with many questions unanswered,I continued to volunteer there through my eighth-grade year.
Paragraph 1:
Several years later,when I was a junior in high school,I was at the gas station when I noticed a familiar face.__________________________
Paragraph 2:
He began to tell me how,as he lay there comatose,he could hear me talking to him and could feel me holding his hand the whole time.________________________发布:2024/12/12 9:0:2组卷:9引用:2难度:0.5670.Kindness is a key value that God desires us to have.When you give kindness to others,it will be returned to you.Finally,we(1)
I became friends with this young(4)
When we went to(8)
On the last day,I also bought him a(11)(1) A.risked B.finished C.hated D.limited (2) A.drank B.sold C.tasted D.supplied (3) A.carelessly B.smoothly C.slightly D.difficultly (4) A.worker B.traveller C.neighbor D.boss (5) A.though B.because C.before D.unless (6) A.held back B.gave up C.came up with D.put up with (7) A.done B.produced C.broken D.replace (8) A.arrest B.blame C.praise D.pay (9) A.damage B.protection C.charge D.entrance (10) A.thin B.strong C.welcome D.wealthy (11) A.door B.ticket C.place D.newspaper (12) A.ignore B.punish C.relax D.judge (13) A.comfortable B.terrible C.strange D.upset (14) A.sadness B.appreciation C.honestly D.regret (15) A.office B.shop C.car D.house 发布:2024/12/12 5:30:2组卷:46引用:1难度:0.3
