不能独立导流的导流泄水建筑物是()。 ["底孔","缺口","隧洞","明渠","涵管"]
山东黄金集团有限公司设(),主持公司日常经营管理工作。 ["A.总经理 ","B.监事会 ","C.董事会 ","D.党委会"]
下列关于提问的原则表述错误的是()。 ["问题要清楚。避免模棱两可、模糊不清的问题","避免使用行话、俚语和简写","避免提出超过被调查者能力的问题","敏感性或威胁性的问题可以放在问卷的后面"]
均质连续静止液体内任何一点的测压管水头等于常数。()
You have very few Cisco 7920 wireless IP phones on your network, but lots of wireless laptops.You want to increase the bandwidth available for the laptops by decreasing the bandwidth reserved forthe Cisco 7920 phones. What is the lowest percentage of voice-allocated bandwidth you can select ontheWLAN controller?() ["55 percent","75 percent","40 percent","25 percent"]
学校增进心理健康的主要途径和方法是()