什么是摩擦提升?

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问题:

什么是摩擦提升?

考点:矿井运输与提升设备矿井运输与提升设备题库
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在△ABC和△A′B′C′中,已知AB=A′B,∠A=∠A′,∠C=∠C′,直接判定△ABC≌△A′B′C′的根据是(  )

A.SSS

B.ASA

C.AAS

D.SAS

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资产负债表中的“应付账款”项目,应()。

A.直接根据"应付账款"科目的期末贷方余额填列

B.根据"应付账款"科目的期末贷方余额和"应收账款"科目的期末借方余额计算填列

C.根据"应付账款"科目的期末贷方余额和"应收账款"科目的期末贷方余额计算填列

D.根据"应付账款"科目和"预付账款"科目所属相关明细科目的期末贷方余额计算填列

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Her temperature ______ to be all right.

A.seems

B.sounds

C.appears

D.looks

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Pharming is a scamming practice in which malicious code is installed on a personal computer or server, misdirecting users to (1) Web sites without their knowledge or consent. Pharming has been called "phishing without a lure".

In phishing, the perpetrator sends out legitimate-(2) e-mails, appearing to come from some of the Web’s most popular sites, in an effort to obtain personal and financial information from individual recipients. But in pharming, larger numbers of computer users can be (3) because it is not necessary to target individuals one by one and no conscious action is required on the part of the victim.In one form of pharming attack, code sent in an e-mail modifies local host files on a personal computer. The host files convert URLs into the number strings that the computer uses to access Web sites. A computer with a compromised host file will go to the fake Web site even if a user types in the correct Internet address or clicks on an affected (4)entry. Some spyware removal programs can correct the corruption, but it frequently recurs unless the user changes browsing (5)

2()

A.connecting 

B.contenttagging 

C.looking 

D.binding

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施工升降机安装时,电缆保护架的安装间距不应大于()m,间距过大时,遇到大风天气,电缆会被风吹到挂在脚手架上,造成事故。

A.5

B.6

C.7

D.8

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