2. 【A】
Appliance: instrument or device for a specific purpose
Accessory: thing that is a useful or decorative extra but that is not essential; minor fitting or attachment
Machine: a piece of equipment with moving parts that uses power such as electricity to do a particular job
Mechanism: working parts of a machine, etc
3. 【D】
Deport: legally force (a foreigner, criminal, etc) to leave a country
Involve: include or affect (sb/sth) in its operation
Deprive: take sth away from sb/sth; prevent sb/sth from enjoying or using sth
Frustrate: upset or discourage (sb)
4. 【C】
Scope: range of matters being dealt with, studied, etc
Range: limits between which sth varies; extent
Rank: position or grade in the armed forces
Domain: field of thought, knowledge or activity
5. 【B】
Command: to tell someone officially to do something, especially if you are a military leader, a king etc
Decree: order given by a ruler or an authority and having the force of a law
Presume: suppose (sth) to be true; take (sth) for granted
Articulate: to express your ideas or feelings in words