1) Open or closed circuit? a) open b) closed 2) Open or closed circuit? a) open b) closed 3) Open or closed circuit? a) open b) closed 4) Open or closed circuit? a) open b) closed 5) Open or closed circuit? a) open b) closed 6) Open or closed circuit? a) open b) closed 7) Open or closed circuit? a) open b) closed 8) Open or closed circuit? a) open b) closed 9) Open or closed circuit? a) open b) closed 10) Open or closed circuit? a) open b) closed

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