单项选择题

A．Practical experience and ability.
B．Years of patient practice.
C．A degree certificate.
D．A set of course of instructions.
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单项选择题
A．It cost much more than its worth.B．It should be brought up-to-date.C．It calls for immediate repairs.D．It can still be used for a long time.
A．It cost much more than its worth.
B．It should be brought up-to-date.
C．It calls for immediate repairs.
D．It can still be used for a long time.
单项选择题
A．Many foreign tourists visit the United States every year.B．Americans enjoy eating out with their friends.C．The United States is a country of immigrants.D．Americans prefer foreign foods to their own food.
A．Many foreign tourists visit the United States every year.
B．Americans enjoy eating out with their friends.
C．The United States is a country of immigrants.
D．Americans prefer foreign foods to their own food.
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