皮皮学，免费搜题
登录
搜题
【多选题】
钢渣的综合利用方法有()。A.
水泥原料
B.
钢渣砖
C.
钢渣磷肥
D.
废物掩埋
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】They have been trying to arrive at a practical solution______ the problem.
A.
in
B.
on
C.
to
D.
with
【单选题】若 Point 为抽象类,则以下正确的是( )。
A.
abstract void SetPoint(Point p) { }
B.
void GetPoint();
C.
Point p=new Point();
D.
class Line : Point { }
【单选题】When customers arrive, they have to _______.
A.
take off their shoes
B.
put on sun glasses
C.
put their phones in a locker
【单选题】They have been trying to arrive at a practical solution ________ the problem.
A.
in
B.
to
C.
on
D.
with
相关题目：
参考解析：
知识点：
题目纠错 0
发布
