信通卡卡面上是否印制姓名分为（）和两种。
A.金卡、银卡
B.储值卡、消费卡
C.有名卡、无名卡
D.主卡、副卡
参考答案：C
菱形ABCD中，AB=2，∠ABC=60°，顺次连接菱形ABCD各边的中点所得四边形的面积为______．
The story books __________ by the writer in the 1960s.[ ]
A. are written
B. were written
C. wrote
