题目内容

氢气压缩机突然停车是立即打开本机回流阀的目的()。

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下面关于国际直接投资的产业结构效应描述不正确的是()

A. 东道国经济发展水平越低,跨国公司进入的市场集中度效应越显著
B. 国际直接投资可以通过促进东道国要素优化配置,推动东道国产业结构优化
C. 国际直接投资会使投资国出现产业空心化,不利于投资国经济发展
D. 小岛清的比较优势理论描述了国际直接投资促进东道国和投资国产业结构优化的情形

单绳缠绕式提升装置,专为升降物料时钢丝绳的安全系数最低值为()。

A. 5.5
B. 5.8
C. 6.0
D. 6.5

Your company has an Active Directory domain. A user attempts to log on to the domain from a client computer and receives the following message: "This user account has expired. Ask your administrator to reactivate the account." You need to ensure that the user is able to log on to the domain. What should you do()

A. Modify the properties of the user account to set the account to never expire.
B. Modify the properties of the user account to extend the Logon Hours setting.
C. Modify the properties of the user account to set the password to never expire.
D. Modify the default domain policy to decrease the account lockout duration.

太阳活动增强时,太阳大气抛出的带电粒子流会使地球上产生什么现象?

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