|-4|等于( )
A.4
B.-4
C.2
D.±4
|-4|=4.
故选A.
The art show was _____ being a failure; it was a great success.[ ]
A. far from
B. along with
C. next to
D. regardless of
请说出数量性状的基本特征及其遗传机制要点。