单项选择题


A．when
B．if
C．how
D．whether
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单项选择题
The map was drawn to the standard______ of 1 100,000, so there was not much detail.
A．route
B．latitude
C．rate
D．scale
单项选择题
A．latestB．firstC．oneD．earliest
A．latest
B．first
C．one
D．earliest
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