某家用电器制造商在原有的电视机系列和洗衣机系列的基础上再增加一个VCD系列，这是( )。

A．增加了产品组合的广度

B．增加了产品组合的长度

C．增加了产品组合的深度

D．增加了产品组合的一致性(关联性)

Kangkang is a boy. His good friend is Yukio. They look the same. Kangkang is twelve. He is from China. He has black hair and brown eyes. Yukio is thirteen years old. He is from Japan. He has yellow skin（皮肤）, black hair and brown eyes.

根据短文内容，判断正（T）误（F）。

小题1:Kangkang is Yukio’s good friend.

小题2:Yukio is from China.

小题3:Kangkang ‘s thirteen years old.

小题4:The two boys look the same.

小题5:Kangkang is Chinese.