超精加工时纵向进给量越大,生产率越高,但不利于细化工件表面粗糙度。

题型:判断题

问题:

超精加工时纵向进给量越大,生产率越高,但不利于细化工件表面粗糙度。

考点:磨工考试中级磨工中级磨工题库
题型:判断题

以下关于劳动合同的表述错误的是( )。

A.劳动合同是劳动者与用人单位确立劳动关系、明确双方权利义务关系的协议

B.劳动合同订立的目的是在劳动者和用人单位之间建立劳动法律关系

C.劳动合同履行中,劳动者必须参加到用人单位的劳动组织中去,担任一定的职务

D.劳动合同是劳动关系当事人自愿制定的,只要双方自主自愿就可以,不以法律为依据

题型:判断题

相对数使用时要注意以下几点,其中哪项是不正确的()

A.比较时应做假设检验

B.要分清离散程度和变异程度

C.不要把构成比当率分析

D.二者之间的可比性

E.分母不宜过小

题型:判断题


Directions:This section consists of three groups of pairs listed in two columns, A and B. You are to match the one marked 1), 2), 3) ,4) or 5) in Column A with the one marked a, b, c, d or e in Column B. One point is given to each pair you match.
1) ______ the Grammar-Translation Method
2) ______ the Direct Method
3) ______ the Audiolingual Method
4) ______ the Cognitive Approach
5) ______ the Communicative Approach
a) The primary function of language is communication.
b) All languages originated from one language and were ruled by a common grammar.
c) Language is a system of structurally related elements for the expressions of meaning.
d) Every language has its own structures and can not be forced into the constraining pattern of Latin grammar.
e) A native speaker has in his brain a set of grammar rules which he can use to make sentences with.

题型:判断题

GPRS核心网通过()与其他电信业务经营者的GPRS网络相连。

A.CG

B.GGSN

C.BG

D.SGSN

题型:判断题

下面可以作为胶黏剂的物质是()。

A、聚醋酸乙烯酯

B、丙烯酸酯类

C、聚氨酯

D、漆酚

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