单项选择题

A．He needs to press F -7 to return to the document before he prints it.
B．He has to print the document to see the page numbers.
C．The printer is not Working correctly.
D．The numbers are on the screen but they don’’t print out.
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单项选择题
Psychologists suggest eating a healthy diet to ward off loneliness.
A．Y
B．N
C．NG
单项选择题
A．He was struck by lightning.B．He had a car accident.C．He was very old.D．He fell down in his yard.
A．He was struck by lightning.
B．He had a car accident.
C．He was very old.
D．He fell down in his yard.
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