皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
Thirty years ago this month,China's leaders launched an economic revolution.___________the door
A.
25. Thirty years ago this month,China's leaders launched an economic revolution.___________the door to free market reforms and foreign trade. A.to open
B.
opened
C.
opening
D.
having opened
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【判断题】对于绝大多数包装来说,符号优先的表现手法是最原始、最基本、最能美化产品的设计手法。
A.
正确
B.
错误
【单选题】 When I was at school, I________ to the library every day.
A.
go
B.
went
C.
was going
D.
have gone
【单选题】Rc3/4表示()。
A.
右旋圆柱外螺纹
B.
左旋圆柱内螺纹
C.
右旋圆锥内螺纹
D.
左旋圆锥内螺纹
【单选题】 He________be in the library because I saw him on the playground just now.
A.
mustn’t
B.
can’t
C.
may not
D.
isn’t able to
【判断题】洛氏硬度值没单位
A.
正确
B.
错误
【单选题】滚动轴承进行轴向定位的轴肩、孔肩必须标注( )。
A.
位置度公差
B.
方向公差
C.
径向圆跳动公差
D.
轴向圆跳动公差
【单选题】 The librarian insists that Dana take ______ books from library before she returns the dictionary she borrowed last month.
A.
no
B.
many
C.
not many
D.
no more
【判断题】洛氏硬度值是没有单位的。 ( )
A.
正确
B.
错误
【单选题】 1. Where is the City library?(details)
A.
Next to the Daxinggong Station.
B.
Next to the traffic light.
C.
On your right.
【多选题】常用管螺纹包括()。
A.
圆柱管螺纹
B.
圆锥管螺纹
C.
NP管螺纹
D.
NPT管螺纹
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题