During the period 1490~1979 the main progress mentioned in this passage was ______. The word "scuba" is ______.

admin2009-06-24  41

问题 During the period 1490~1979 the main progress mentioned in this passage was ______.
The word "scuba" is ______.

选项 A、a certain diver’s name
B、an original English word
C、named by the inventor
D、the first letters of five English words

答案D

解析 由倒数第二段中的The most important advance, however, was the invention of a self-contained underwater breathing apparatus, which is called a "scuba"可知,scuba为self-contained underwater breathing apparatus五个单词首字母的缩写,意为"水肺",即"水下呼吸器"。
转载请注明原文地址:https://kaotiyun.com/show/RrHd777K
0

随机试题
最新回复(0)