首页
登录
职称英语
Imagine being able to print rocket engine parts, chocolate figurines, design
Imagine being able to print rocket engine parts, chocolate figurines, design
游客
2024-08-19
6
管理
问题
Imagine being able to print rocket engine parts, chocolate figurines, designer sunglasses,
or even pizzas—just with pressing a single button. It may sound like something out of【M1】________
science fiction, but it’ s increasing becoming a reality. Thanks to 3-D printing, 【M2】________
companies are reimaging their long-term business plans.
Invented in mid-1980s, 3-D printers create solid, three-dimensional objects【M3】________
from various materials such as plastic, wax, wood, gold, or titanium. A major advantage of
3-D printing is that designs for objects can be easily changed. When designs were changed in traditional【M4】________
manufacturing, the machinery that make the objects needs to be redesigned or upgraded, 【M5】________
which can be very cost. But in the case of 3-D printers, only the software needs to be modified.【M6】________
3-D printing is also better than traditional manufacturing because there is no wasted【M7】________
material. With traditional manufacturing, some material is cut away from to create an object, 【M8】________
but 3-D printing uses only which is necessary. Guided by software, a 3-D printer builds【M9】________
an object one layer at a time, place material only where it needs to be. As a result, 【M10】________
it can make complex objects less expensively. [br] 【M4】
选项
答案
Were→are
解析
该句的意思是“当传统制造中的设计发生变化时,制造物体的机器需要重新设计或升级,这可能非常昂贵”。根据整篇短文的时态可知,此处时态应该用一般现在时,因此需将were改为are。
转载请注明原文地址:https://tihaiku.com/zcyy/3726472.html
相关试题推荐
Imaginebeingabletoprintrocketengineparts,chocolatefigurines,design
Imaginebeingabletoprintrocketengineparts,chocolatefigurines,design
Imaginebeingabletoprintrocketengineparts,chocolatefigurines,design
Imaginebeingabletoprintrocketengineparts,chocolatefigurines,design
Imaginebeingabletoprintrocketengineparts,chocolatefigurines,design
那位老妇人受了打击,需要安慰。It’shardtoimaginelivinginaplacewheretherearenoteleph
Itwas______thechiefengineercame______webegantheexperiment.A、notuntil
They______suchabigvan______thepriceofgaswouldskyrocket.A、wouldhave
—Istillhaven’tmadeadecision______tothenewengineeringproject.—It’sreall
很难想象生活在一个没有电话、没有汽车的地方是什么样子。(where)It’shardtoimaginelivinginaplacewheret
随机试题
[audioFiles]audio_eufm_j16_001(20082)[/audioFiles]A、Better.B、Sick.C、Fine.D、T
StructureoftheCanadianGovernmentI.Introduction—Canada’ssystemofgovern
WiththedevelopmentoftheInternet,people’slife_______inthepastfewyears
小学数学《圆柱的表面积》 一、考题回顾
黑格尔说:“割下来的手就失去了它的独立的存在……只有作为有机体的一部分,手才能获
“文艺复兴”时期,出现的反封建的主要社会思潮包括:()。A.古典主义思潮 B.
A.连翘木香 B.银花陈皮 C.黄芩栀子 D.黄连桔梗 E.丹参玄参仙方
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
(2021年真题)下列税收收入中,属于地方财政收入的有()。A.烟叶税 B.
热力管道在采用蒸汽吹扫前应进行的工作为( )。 A.酸洗、钝化 B.
最新回复
(
0
)