题目

It is reported that two schools,____ are being built in my hometown,will open next year. A.they both                                                     B.which both C.both of them                                                 D.both of which 答案：D 解析: both of which引导非限制性定语从句，which指代先行词schools,作of的宾语。they both和both of them都不能引导定语从句，所以是错误的。which both中的which不能修饰both，所以也是错误的。如图，直线AB、CD相交于点O，在这两条直线上，与点O的距离为3cm的点有A. 2个 B. 3个 C. 4个 D. 5个