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【单选题】
我们的药品，90%以上都是国外专利;我们的数控机床70%都是国外专利;我们的汽车90%都是合资企业或者是国外品牌。这给我们的哲学启示是( )
A.
矛盾双方在一定条件下相互转化
B.
外因是事物变化发展的必要条件
C.
要有创新精神，学会创造性思维
D.
要用联系的观点看问题
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】"We thought there was a future in nuclear power when no one else believed in it," says Anne Lauvergeon, chief executive of Areva. The French, government-owned company is building the first nuclear rea...
A.
Areva’s capacity is much bigger than Westinghouse and GE Hitachi
B.
readers figures to attract their attention
C.
readers the existing truth in nuclear market
D.
nuclear power has been in the state of revival
【单选题】"We thought there was a future in nuclear power when no one else believed in it," says Anne Lauvergeon, chief executive of Areva. The French, government-owned company is building the first nuclear rea...
A.
With hardly any other resource, they chose nuclear as a way.
B.
They have always been sticking to building new reactors.
C.
They construct nuclear reactors only for their own use.
D.
Nicolas Sarkozy toured to promote nuclear expertise to win election.
相关题目：
【多选题】数控机床的加工特点是( )
A.
自动化程度高，减轻劳动强度
B.
加工精度高，质量稳定
C.
生产效率高
D.
良好的经济效益
E.
适应性强，便于生产管理
【单选题】"We thought there was a future in nuclear power when no one else believed in it," says Anne Lauvergeon, chief executive of Areva. The French, government-owned company is building the first nuclear rea...
A.
Areva’s capacity is much bigger than Westinghouse and GE Hitachi
B.
readers figures to attract their attention
C.
readers the existing truth in nuclear market
D.
nuclear power has been in the state of revival
【单选题】机床开动前,必须 机床防护门。
A.
关闭
B.
开启
C.
都可以
【单选题】每台机床（）
A.
只有一个主运动
B.
至少有一个主运动
【多选题】机床进行定期清洗时，非重点是（）
A.
机床导轨
B.
机床润滑系统
C.
机床传动零件
D.
齿轮部位
【单选题】数控机床的核心是( )。
A.
伺服系统
B.
数控系统
C.
系统反馈
D.
传动系统
【单选题】机床外部热源主要是热( )。
A.
辐射
B.
传递
C.
传导
D.
平衡
【多选题】数控机床主机包括（ ）
A.
主轴
B.
导轨
C.
床身
D.
交换工作台
E.
排屑装置
【判断题】在机床通用特性代号中,B代表刨床。
A.
正确
B.
错误
【单选题】"We thought there was a future in nuclear power when no one else believed in it," says Anne Lauvergeon, chief executive of Areva. The French, government-owned company is building the first nuclear rea...
A.
With hardly any other resource, they chose nuclear as a way.
B.
They have always been sticking to building new reactors.
C.
They construct nuclear reactors only for their own use.
D.
Nicolas Sarkozy toured to promote nuclear expertise to win election.
【单选题】数控机床（）。
A.
不需要接地
B.
应良好接地
C.
对电路干扰不敏感
D.
对振动不敏感
【单选题】我国高速加工机床的进给系统一般是( )
A.
精密步进电机+精密丝杆
B.
高性能伺服电机+精密丝杆
C.
交流伺服电机+滚珠丝杠螺母副
D.
直线驱动电机
【单选题】汽车装配的基体是（）。
A.
车架
B.
车桥
C.
车轮
【单选题】(P150)合资企业的主要方式不包括()
A.
营销合资
B.
合作科研
C.
合作生产原材料和零配件
D.
合作创立新公司