单项选择题

A．By digging site.
B．By reconstructing skeletons.
C．By observing them closely.
D．By living with them.
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单项选择题
Nowadays freight is not carried by water in the United Kingdom.
A．Y
B．N
C．NG
单项选择题
A．The personnel manager should be fired for inefficiency.B．A few engineers should be employed to modernize the factory.C．The entire staff should be retained.D．Better-educated employees should be promoted.
A．The personnel manager should be fired for inefficiency.
B．A few engineers should be employed to modernize the factory.
C．The entire staff should be retained.
D．Better-educated employees should be promoted.
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