The relations of velocities of pointsandin the crank-connecting rod mechanism are shown. Which one could be correct?
A、
B、
C、
D、
The relations of velocities of pointsandin the crank-connecting rod mechanism are shown. Which one could be correct?
A、
B、
C、
D、
A、the importance of context of situation
B、the diachronic study of language
C、the function of language
D、the system aspect of language
A、give some suggestion
B、remind the reader of the main points in the body of the essay
C、reinforce the thesis
D、All of the above
A、elementary knowledge concerning IELTS
B、techniques and skills
C、basic English testing concepts and terms
D、various academic English expressions
A、The wavelength is 5m.
B、The wave speed is 10 m
C、The period iss
D、The wave travels along the positvie direction of x axis.
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!