-12的绝对值为:|-12|=12,
12的相反数为:-12,
所以-12的绝对值的相反数是为:-12,
故选:B.
根据首字母和句意提示填空。
1. It's not easy. It's h____________.
2. H____________! I hurt my nose.
3. We p____________ cards on the train. It's fun.
4. The cars are quick. They go q____________.
5. Danny is loud. He is singing. He is not q____________.
用于做亲子鉴定的材料是( )
A.白细胞
B.红细胞
C.血小板
D.血浆