皮皮学，免费搜题
登录
搜题
【简答题】
请下载附件并完成附件中的两道作业题 ,并于下周一下午三点前提交 20200316机械原理第九章凸轮廓线的设计课后作业.doc 注:凸轮压力角的概念与连杆机构是相同的,即推动从动件运动的力与从动件运动速度之间的夹角。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】在衰退产业中，企业选择一项衰退战略需考虑两个因素： 一是衰退的产业结构， 二是企业自身的相对竞争力。 当产业结构有利，相对竞争力弱时，应采用以下哪种战略（）
A.
领先或坚壁战略
B.
收获或迅速放弃战略
C.
坚壁或收获战略
D.
迅速放弃战略
查看完整题目与答案
【单选题】— Why did you go to London two years ago? — I went there with the aim of learning English.
A.
to practice speaking
B.
improving
C.
in order to learn
D.
in order that learn
查看完整题目与答案
【单选题】"Why did you go to the wrong class, Mr. Wang "
A.
ell, I forget _______ I was supposed to go to."
B.
which the room
C.
which room
D.
what was the room
E.
what room was it
查看完整题目与答案
【单选题】---Why did you go back to the shop? --I left my friend_____ there. [     ]
A.
waiting
B.
to wait
C.
wait
D.
waits
查看完整题目与答案
【单选题】听力原文：W: Why did you go to the basketball game, Jim? M: I'm a real sports lover. What can you learn from Jim's reply?
A.
He goes to most types of games.
B.
Basketball is his only sport.
C.
He plays basketball.
查看完整题目与答案
【单选题】马斯洛需要层次中的最高层次需要是
A.
生理与安全
B.
社交与尊重
C.
求知与审美
D.
自我实现
查看完整题目与答案
【单选题】—Why did you go swimming ________ Tom? —Because he was ill at home. [     ]
A.
with
B.
besides
C.
beside
D.
except
查看完整题目与答案
【判断题】衰退产业中企业应选择迅速放弃战略。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】You promised you would do it. Why did you go ______ on your word?
A.
back    
B.
away    
C.
over    
D.
by
查看完整题目与答案
【单选题】— Why did you go to the wrong office, Peter? — Well, I forgot which room I was to go to.
A.
hoped
B.
suggested
C.
demanded
D.
supposed
查看完整题目与答案
相关题目：
【单选题】在衰退产业中，企业选择一项衰退战略需考虑两个因素： 一是衰退的产业结构， 二是企业自身的相对竞争力。 当产业结构有利，相对竞争力弱时，应采用以下哪种战略（）
A.
领先或坚壁战略
B.
收获或迅速放弃战略
C.
坚壁或收获战略
D.
迅速放弃战略
查看完整题目与答案
【单选题】— Why did you go to London two years ago? — I went there with the aim of learning English.
A.
to practice speaking
B.
improving
C.
in order to learn
D.
in order that learn
查看完整题目与答案
【单选题】"Why did you go to the wrong class, Mr. Wang "
A.
ell, I forget _______ I was supposed to go to."
B.
which the room
C.
which room
D.
what was the room
E.
what room was it
查看完整题目与答案
【单选题】---Why did you go back to the shop? --I left my friend_____ there. [     ]
A.
waiting
B.
to wait
C.
wait
D.
waits
查看完整题目与答案
【单选题】听力原文：W: Why did you go to the basketball game, Jim? M: I'm a real sports lover. What can you learn from Jim's reply?
A.
He goes to most types of games.
B.
Basketball is his only sport.
C.
He plays basketball.
查看完整题目与答案
【单选题】马斯洛需要层次中的最高层次需要是
A.
生理与安全
B.
社交与尊重
C.
求知与审美
D.
自我实现
查看完整题目与答案
【单选题】—Why did you go swimming ________ Tom? —Because he was ill at home. [     ]
A.
with
B.
besides
C.
beside
D.
except
查看完整题目与答案
【判断题】衰退产业中企业应选择迅速放弃战略。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】You promised you would do it. Why did you go ______ on your word?
A.
back    
B.
away    
C.
over    
D.
by
查看完整题目与答案
【单选题】— Why did you go to the wrong office, Peter? — Well, I forgot which room I was to go to.
A.
hoped
B.
suggested
C.
demanded
D.
supposed
查看完整题目与答案