起重机上起升机构的制动器必须能可靠地制动1.25倍的额定载荷。
公司重整与破产的区别。
学生“念念叨叨”的表述出自己正在进行的心智活动的情况属于()。 物质活动。 物质化活动。 出声的外部言语活动。 内部言语活动。 不出声的外部言语活动。
You work as a senior administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers on the ABC.com network have Windows Server 2012 R2 installed.You are running a training exercise for junior administrators. You are currently discussing connection security rules.Which of the following is TRUE with regards to connection security rules?() Connection security rules allows for traffic to be secured via IPsec.。 Connection security rules do not allow the traffic through the firewall.。 Connection security rules are applied to programs or services。 Connection security rules are applied between two computers.。
汽车零部件或总成的平均维护时间等于维护该机件时总的维护工时()维护次数。 乘以。 除以。 加上。 减去。
易燃易爆介质、压力比较高的压力容器不能采用()。