初步拟定该齿轮的加工工艺路线。

题型:问答题 简答题

问题:

初步拟定该齿轮的加工工艺路线。

考点:机械工程师第九章机械制造基础第九章机械制造基础题库
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某同学为了探究并联电路中干路的电流与各支路电流之间的关系,设计电路如图所示.

(1)当闭合开关了,该同学发现电流表A1指针向“O”刻线左边偏转,则故障原因可能是什么?

(2)如闭合开关了,该同学还发现电流表A的指针向右偏转,超过了右边最大刻度值,那该怎么办?

(3)排除一切故障后,该同学分别记下电流表A、A1、A2示数,然后换上另外两个灯泡,再次计下三个电流表示数,两次记录的数据如下表:

 A的示数A1的示数A2的示数
第一次测量0.8A0.3A0.5A
第二次测量0.7A0.4A0.3A
根据上表的数据分析,可得出结论是______.

题型:问答题 简答题

中学时代对男女同学间能否建立友情的正确认识是 [ ]

A.“男女授受不亲”,男女同学间不应有友情

B.男生女生性格、情感等方面各有不同,交往可以互为补充、健康成长

C.中学时代,男女生建立真挚友情是道德败坏的表现

D.男人是火,女人是水,水火不相容,男生女生不能交往

题型:问答题 简答题

物业经营管理主要以()为管理对象,强调策略性价值管理等特点,要求物业管理师具备房地产投资知识和选择投资区位的能力。

A.收益性物业

B.业主或投资者

C.服务性物业

D.综合性管理服务

题型:问答题 简答题

在神经肌肉接头兴奋传递过程中,哪种离子对乙酰胆碱的释放最关键()

A.钠离子

B.钾离子

C.氯离子

D.钙离子

E.镁离子

题型:问答题 简答题

This interactive on-line program helps non-native writers of English improve or fine-tune (调整) their writing skills in English. Recommended for intermediate or advanced levels, this on-line language class targets common writing problems of ESL/EFL writers. Class participants will build more effective writing skills. Topics include the items listed below.

● Clear explanations of grammar rules in English.

● Examples of common errors.

● Interactive practice activities that give students immediate feedback on answers.

● Application activities to guide students in applying new skills.

A free on-line needs assessment is provided to give participants an immediate results analysis to help them decide if this program will meet their needs.

To register call (519) 594-5152.

For further information, call (519) 594-5907 and ask for Dr. Roberts.

Instructor: Kathy L. Hans, has been teaching in the field of English as a second language for more than 20 years. She has trained ESL teachers throughout California for the State Department of Education and authored Teaching Pronunciation in Context, a training text with videotapes for teachers.

The Interactive On-line Program The participants of this program: (46) of English

The aim of this on-line language class: to solve (47) of ESL/EFL writers

The number of program topics: (48)

The way to decide if this program will meet the participants’ need: free (49)

The length of Kathy L. Hans’s working experience, more than (50)

Choose the right word to fill in the following essay corresponds to the air()

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