单选题
公共英语二级
2011-08-18
The biggest advantage of this product is that__________.
A．[ A ] it will be faster and cheaper than manual labor
B．[ B ] it can climb mountainsides, drill holes, insert bars and cement
C．[ C ] it can collect data on the slope' s stability
D．[ D ] it can drill without a human being on board
参考答案
D
答案解析
细节判断题。从第二段The idea is to operate a machine faraway that Can drill without a human being on board一句以及第一段讲滑坡人工抢险的危险，可知这种产品的最大优点就是无人操作的安全性。
