单项选择题

______ that this region was so rich in natural resources.

A．Little he knew
B．Little did he know
C．Little he did know
D．Little he had know
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单项选择题
It takes years of hard work to ______ a good dictionary.
A．compose.
B．comply
C．construct
D．compile
单项选择题
India and Pakistan have 0.3 and 0.4 hectares of cropland per person ______.
A．relatively
B．proportionally
C．particularly
D．respectively
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