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【简答题】
小美用手把一个重为 0.4 N 、体积是 2.7×10 - 5 m 3 的玩具球完全浸没到水中,玩具球受到的浮力是 ________N ,放手后玩具球将 ________( 填 “ 上浮 ”“ 下沉 ” 或 “ 悬浮 ”) . (g 取 10 N/kg , ρ 水 = 1.0×10 3 kg/m 3 )
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【单选题】Companycom is installing a p5 590 with a HMC to manage LPARs. The customer is very concerned about security and wants to restrict network traffic that is not necessary. What is necessary for communica...
A.
An administrative VLAN with port 1808
B.
Port 657 which must remain open to TCP/IP and UDP traffic
C.
Network addresses are provided by DHCP services on the network
D.
DHCP on the HMC is required to be on to communicate between LPAR and HMC
【单选题】一、单选题(共40题,每小题1分) 各地食品药品监管部门要全面摸排本行政区域内中小学校和幼儿园基本情况,建立( ),实现中小学校和幼儿园食品安全监管全覆盖、无死角。
A.
食物安全主体制度
B.
食物安全监督机制
C.
食品安全监管档案
【简答题】In Britain, the old Road Traffic Act restricted speeds to 2 m.p.h. in towns and 4 m.p.h. in the country. Later Parliament increased the speed limit to 14 m.p.h. But by 1903 the development of the car ...
【简答题】在Java中，所有的类都继承于___________类。
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