问题
选择题
Today, housework has been made much easier by electrical _____.
A．facilities
B．appliances
C．instruments
D．equipment
答案
答案：B
.考查名词的用法。electric appliances电器用具，facilities公用设备。equipment设备,装备，是集合名词，指“设备”的总称，只有复数形式。instrument仪器。