Every one of us has（）machine（）machine is（）brain. A: a...A．..the B: a...The...the C: the...A．..a D: a...A．..a

Microwave cooking can be described as()first absolutely new method of preparing ()food since()discovery of fire. A: a...the...the B: the.../...the C: a.../.../ D: the...the...the