18. 闪锌矿（ZnS）最大的特征是……………………（ ）

－－－Does Bill do his new job well －－－－－－_______his old job . I’mfrid there is no hope for him .. ---Does Bill do his new job well ------_______his old job . I’mfrid there is no hope for him .Not better thn B．No better thn C．Not so wells D．No less thnA．Not better thanB．No better thanC．Not so well asD．No less than

es the mn py for his bill He uses csh. B．He uses his check. C．He uses his credit crd. D．He borrows money from the womn.A．He uses cash．B．He uses his check．C．He uses his credit carD．He borrows money from the woman．