若a＞b，则|b-a|=a-b。[ ]
正确
用开炼机混炼氯丁橡胶时，温度高容易出现焦烧和（）等毛病。
Jay Chou , a young singer, is quite popular ___the public. He’s made a remarkable achievement ___a boy of his age.
A．with; to
B．to ; for
C．with ; for
D．for ; to
