导向轮满载垂直偏差()。A.≤0.5mm B.≤2mm C.≤1mm D.≤1.5m

题型:单项选择题

问题:

导向轮满载垂直偏差()。

A.≤0.5mm

B.≤2mm

C.≤1mm

D.≤1.5mm

考点:电梯操作证考试第二部分专业知识第二部分专业知识题库
题型:单项选择题

心气虚证的临床表现为()

A.心 

B.肝 

C.脾 

D.肾 

E.肺

题型:单项选择题

关于采用奇偶校验的内存和ECC内存,下面四种描述中,正确的是( )。

A.二者均有检错功能,但无纠错功能

B.二者均有检错和纠错功能

C.前者有检错和纠错功能,后者只有检错功能

D.前者只有检错功能,后者有检错和纠错功能

题型:单项选择题

一家主要开采铅锌的国有矿山企业勘探出附件矿区有丰富铜矿,计划开发,但在开发之前须办理法律规定的采矿许可手续。于是,便携带有关资料到市国土房管局申请办理有关铜矿的采矿登记手续,市国土房管局依法给予了采矿登记。该采矿登记属于何种行为( )

A.属于行政确认,因为采矿登记确认了采矿权

B.属于行政内部审批

C.属于行政许可,因为该采矿登记是依法并依申请作出的,赋予了该国有矿山企业采矿权

D.属于行政强制措施,因为采矿必须进行登记

题型:单项选择题

下列词语中加点字的读音,全都不相同的一组是_______.

A. 歼 灭 纤 维 忏 悔 阡 陌见异思 迁

B. 侥 幸 骁 勇妖 娆 蹊 跷 不屈不 挠

C. 猝 然 憔 悴 纯 粹 荟 萃 鞠躬尽 瘁

D. 逡 巡 竣 工 唆 使 疏 浚 怙恶不 悛

题型:单项选择题

The presentation layer is concerned with the(1) and semantics of the information exchanged between two systems. The processes in two systems are usually exchanginginformation in the form of character(2)numbers, and so on. The information should bechanged to bit (3) before being transmitted. Because different encoding systems, thepresentation layer is responsible for (4)between these different encoding methods. Thepresentation layer at the sender changes the information from its sender-dependent format into acommon format. The presentation layer at the receiving machine changes the common format intoits (5) dependent format.

(1)是()

A.frequency

B.syntax

C.dialog

D.format

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