Question

xxxyh

想問20題的ABC要如何判斷 謝謝

20
E 20 M 超
Over the past few years, three-dimensional printing, or 3D printing in short, has slowly but surely been
brought into focus in the world of industry. The technology is
16
on automated machines, which put down
many thin layers of materials, such as plastic, metal and concrete, on top of each other to create objects in a
bottom-up manner. Simple 17 the mechanism of the technology seems, it has been widely used in creating
specialized items and delicate parts in the manufacture of a variety of industrial products, ranging from automobiles
to medical devices.
But now, some startups have been experimenting with the idea of building structures with the aid of 3D
printing by making wise use of its inherent advantages. The employment of a 3D printing system can 18
reduce construction costs by up to 30 percent. In fact, parts of the costs cut down actually result from the removal
of nearly all building waste in the constructing process, which can save up to three tons of carbon per home.
19 with the 3D printing technology, houses can be produced at two times the rate of traditional ways. The
productivity of a standard 3D printing system is estimated to be roughly equivalent to 20 of 20 workers in
several different fields combined. After all, machines, unlike humans, can work 24 hours a day nonstop.
0 16. 7 (A) sufficient
(B) insistent
(C) consequent
(D) dependent
Dcuso
(B) but
(C) while
(D) though 130 hp
18. (A) barely
(B) randomly
(C) significantly (D) intentionally
19. (A) In addition
(B) As a result
(C) In short
(D) On the contrary
20 (A) which
(B) that
(C) those
(D) what
BA
三、文意選填(占10 分)

Answer 1

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Shao

這邊主語是
"The productivity of a standard 3D printing system"
他想說大約與另一物相等，那另一邊應該要是
"the productivity of 20 workers..."
遇到這種情況時，通常可以把第二個the productivity用that代替
形成that of...的結構

給幾個例句吧
Their range is shorter than that of gas-powered cars.
=Their range is shorter than the range of gas-powered cars.
A crucial issue is that of legitimacy.
=A crucial issue is the issue of legitimacy.

xxxyh

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