已知轮船在逆水中前进的速度是m千米/时，水流的速度是2千米/时，则这轮船在静水中...

皮皮学，免费搜题

搜题

【简答题】

已知轮船在逆水中前进的速度是m千米/时，水流的速度是2千米/时，则这轮船在静水中航行的速度是（）千米/时。

手机使用

复制链接

新浪微博

分享QQ

微信扫一扫

微信内点击右上角“…”即可分享

反馈

参考答案：

举一反三

【判断题】Any fluid can be compressed when extremely large pressure is applied.

正确

错误

查看完整题目与答案

【判断题】Air, water, refrigerant or any other fluid can flow through a thermal distribution system

正确

错误

查看完整题目与答案

【单选题】Soon after the PRC was set up, a new law was passed which _______ people’s freedom of speech, religion and demonstration.

announced

guaranteed

kept

prevented

查看完整题目与答案

【单选题】据《政府采购法》的规定,采购人可以采用询价方式采购货物或者服务,主要情况是

只能从唯一供应商处采购

发生了不可预见的紧急情况不能从其他供应商处采购

采购的货物规格、标准统一,现货货源充足且价格变化幅度小

采用招标所需时间不能满足用户的紧急需要

查看完整题目与答案

【单选题】Different from popular _____, most good leaders are made, not born. [ ]

belief

agreement

religion

decision

查看完整题目与答案

【单选题】The amount of fluid delivered by a centrifugal pump can be regulated by _____.

throttling the pressure line

changing the speed of the rotor

either A or B

None of the above is tree

查看完整题目与答案

【简答题】The leaves of evergreens can survive the winter because they are ______and fluid inside their cells contains cold-resisting substances.

查看完整题目与答案

【单选题】根据《政府采购法》的规定,采购人可以采用询价方式采购货物或者服务,主要包括( )。

只能从唯一供应商处采购的

发生了不可预见的紧急情况不能从其他供应商处采购的

采用招标所需时间不能满足用户紧急需要的

采购的货物规格、标准统一、现货货源充足且价格变化幅度小的政府采购项目

查看完整题目与答案

【单选题】How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic systems? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>

Clean the fittings before they are disconnected.

Place drip pans under leaky fittings. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>

Seal any cracks in lines with Permatex.

Coat all threads with graphite oil. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>

查看完整题目与答案

【判断题】We can check transmission fluid any time.

正确

错误

查看完整题目与答案

正确

错误

查看完整题目与答案

【判断题】Air, water, refrigerant or any other fluid can flow through a thermal distribution system

正确

错误

查看完整题目与答案

【单选题】Soon after the PRC was set up, a new law was passed which _______ people’s freedom of speech, religion and demonstration.

查看完整题目与答案

【单选题】据《政府采购法》的规定,采购人可以采用询价方式采购货物或者服务,主要情况是

只能从唯一供应商处采购

发生了不可预见的紧急情况不能从其他供应商处采购

采购的货物规格、标准统一,现货货源充足且价格变化幅度小

采用招标所需时间不能满足用户的紧急需要

查看完整题目与答案

【单选题】Different from popular _____, most good leaders are made, not born. [ ]

查看完整题目与答案

【单选题】The amount of fluid delivered by a centrifugal pump can be regulated by _____.

throttling the pressure line

changing the speed of the rotor

either A or B

None of the above is tree

查看完整题目与答案

【简答题】The leaves of evergreens can survive the winter because they are ______and fluid inside their cells contains cold-resisting substances.

查看完整题目与答案

【单选题】根据《政府采购法》的规定,采购人可以采用询价方式采购货物或者服务,主要包括( )。

只能从唯一供应商处采购的

发生了不可预见的紧急情况不能从其他供应商处采购的

采用招标所需时间不能满足用户紧急需要的

采购的货物规格、标准统一、现货货源充足且价格变化幅度小的政府采购项目

查看完整题目与答案

【单选题】How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic systems? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>

Clean the fittings before they are disconnected.

Place drip pans under leaky fittings. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>

Seal any cracks in lines with Permatex.

Coat all threads with graphite oil. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>

查看完整题目与答案

【判断题】We can check transmission fluid any time.

正确

错误

查看完整题目与答案

参考解析：

知识点：

题目纠错 0

发布