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長按下面二維碼即可 |
1.單選題
[完成句子]In Britain, robot sales appropriately peaked in 1984, but have been declining ever since. This is partly because, British wage rates are too low to make robots financially attractive and partly because engineers now have more experience with robots and are more aware of the difficulties of introducing them effectively.
Robots are less popular in Britain today partly because __________.
A、too much energy
B、based on American designs
C、they are too costly
D、they are not reliable
正確答案:C
答案解析:本段第二句就是講的兩個原因,即人們的工資水平太低,也就是沒有能力使機器人發(fā)揮出創(chuàng)造財富的作用,言下之意就是成本高。第二個原因就是人們逐漸意識到了操縱機器人不是件容易的事情,所以使用率就下降了。所以應該選C。
2.單選題
[概括大意]Our bodies are estimated to be about 60 to 70% water. Blood is mostly water, and our muscles, lungs, and brain all contain a lot of water. Water is needed to regulate body temperature and to provide the means for nutrients (滋養(yǎng)) to travel to all our organs. Water also transports oxygen to our cells, removes waste, and protects our joints and organs.
The main idea of this paragraph is__________.
A、Ounces of Water Needed Per Day
B、Importance of Water
C、Water in Our Body
D、The Function of Water
正確答案:B
答案解析:通過介紹水在我們身體里的含量、水存在身體的那些部位及水的一些功能來證明水的重要性。因此選擇B。
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