The three basic components of a fire are chain reaction, heat, fuel, and ____.

A．carbon monoxide

B．oxygen

C．carbon dioxide

D．any gaseous substance

[单选题]The palace eaught fire three times in the last century , and little of the original buliding________now .A． remains B.is remainedC． is remaining D. has been remained

[试题]E．xplain the three basic delivery steps for conformed dimensions.简述对一致性维度的三种基本的交付步骤。

[单选题]Generally speaking, the syntactic relations include three basic types. Whic

[单选题]F．ire dampers prevent the fire spreading through the process ofA．convectionB．conductionC．radiationD．direct contact

[单选题]Which of the following components are used to convert alternating current produced in the generator windings to direct current?A．Armature and equalizerB．Commutator and brushesC．Rotor and interpolesD．Field and exciter

[单选题] (73) manages the other components of a computer system.(73)A．BusB．Application systemC．Operating systemD．Disk

[单选题]setting redundant components in subsystem to handle with the risks brought by the defaults of original components,what kind of risk response strategy is this？（）A .risk avoidanceB .risk acceptanceC .risk mitigationD .contingency plan

[名词解释] 组分结构（Components Structure）

[单选题]The CPU is composed of two components，which are (66) ．(66) A．asthmatics logic unit and controllerB．arithmetic logic unit and memoryC．memory and controllerD．controller and storage

[单选题] The （72） has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.（72）A． applicationB． information systemC． operating systemD． iterative