-- card: 69748 from stack: in -- bmap block id: 87501 -- flags: 0000 -- background id: 2707 -- name: #297 ----- HyperTalk script ----- on openCard global group,rightone put 24 into group put "A" into rightone pass openCard end openCard -- part contents for background part 20 ----- text ----- Question #24 -- part contents for background part 1 ----- text ----- 2G-1-2.2 What is the unlabeled (?) block in this diagram? -- part contents for background part 28 ----- text ----- A linear amplifier -- part contents for background part 29 ----- text ----- A microphone -- part contents for background part 11 ----- text ----- A TR switch -- part contents for background part 27 ----- text ----- A variable frequency oscillator -- part contents for background part 43 ----- text ----- Correct answer is A