船舶需进行明火作业时,其危险区域的开敞甲板,从作业点向首尾延伸,以船舶宽度为界,向下至平台或甲板,向上()米的柱形空间为作业环境考查区域.
A.2
B.3
C.4
参考答案:A
检验收集工作质量的首要标准是看是否()。
A、坚持集中统一管理
B、按专业统一管理
C、收集数量越多越好
D、符合案卷质量的要求
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