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单选题 43. What is the weakness of the 3D printer mentioned in the passage?

A

It cannot always spread the plastic evenly.

B

It needs to be shortened.

C

It cannot make the ribs of the honeycomb structure.

D

It can print anything smoothly.

正确答案 :A

解析

本题考查事实细节。
根据题干关键词 “weakness of the 3D printer ” 定位到的第三段第一句 “The printer did not always manage to spread the plastic evenly (均匀的),making some of the ribs of the honeycomb structure of the block uneven...”。可知,3D打印机并不总是能够将塑料均匀地铺开,这使得房子蜂窝状结构的一些横梁变得不均匀。
A项:It cannot always spread the plastic evenly. 它不能总是将塑料均匀地铺开。符合题意,故选A。
B项:It needs to be shortened. 它需要被缩短。不符合题意,故排除。
C项:It cannot make the ribs of the honeycomb structure. 它不能制作蜂窝状结构的横梁。不符合题意,故排除。
D项:It can print anything smoothly. 它可以顺利地打印出任何东西。
故本题答案为A。

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