【单选题】鸟类体表被覆羽毛,前肢变成翼,能进行“双重呼吸”,体温而恒定。鸟类的“双重呼吸”是指 [ ]
【单选题】When the PSCO would like to witness a fire drill carried out by the crew, he should consult ______ to locate a simulated fire.
A.
the manager of the company
B.
the surveyor of the Classification Society
C.
the master of the vessel
D.
the chief engineer of the vessel
【单选题】Internet有许多不同结构的局城网和广城网互相连接在一起,它们能相互通信并协调地进行工作的基础 是因为都采用了 ____ 协议。
【单选题】采购方式按()分为购销采购、代销采购、联营采购。
【单选题】( )的设想,第一次把现代城市的功能在用地上作了明确的划分。
【单选题】以下哪一种情况能很好地发挥cache的作用
【判断题】详细设计阶段的任务还不是具体地编写程序,而是要设计出程序的“蓝图”,以后程序员根据这个蓝图编写实际的代码。( )
【单选题】When the PSCO would like to witness a fire drill carried out by the crew , he should consult with the ______to locate a simulated fire.
A.
Manager of the company
B.
surveyor of the Classification Society
D.
chief engineer of the vessel