单项选择题

A．A salesman.
B．A telephone repairman
C．A plumber.
D．An electrician.
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单项选择题
A．Be a bad boy.B．Eat too fast.C．Go to a game.D．Skip his lunch.
A．Be a bad boy.
B．Eat too fast.
C．Go to a game.
D．Skip his lunch.
单项选择题
The application of advanced automated and computerized machinery will result in loss of some blue-collar jobs.
A．Y
B．N
C．NG
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