异构型DDBS
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| 如图所示，手提一根不计质量的、下端挂有物体的弹簧，竖直向上作加速运动。手突然停止运动的瞬间，物体将（ ） A．立即处于静止状态 B．向上作加速运动 C．向上作减速运动 D．向上作匀速运动 |
雀斑生于肩背部者，除基本处方外，还加用（）。
A.肩井
B.膈俞
C.肺俞
D.天宗
E.督俞
从3双完全相同的鞋中，随机抽取一双鞋的概率是：（）
A．A
B．B
C．C
D．D
“建机一体化”企业应当提供建筑起重机械（）等一体化服务。
A、维护保养
B、附着
C、顶升
D、安装
In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet. Heterogeneous network environments consist of computer systems from (66) vendors that run (67) operating systems and communication protocols. An organization that (68) its computer resources is usually (69) the task of integrating its heterogeneous systems. Typically, each deparlment or division has defined its own network needs (70) OS, LAN topology, communication protocols, applications, and other components.
A．same
B．similar
C．different
D．difference