单选题
Navigators on ships and aircraft use a compass to determine________they are heading.
A、
to where the direction
B、
the direction in which
C、
that direction of which
D、
where the direction
【正确答案】
B
【答案解析】
本题考查句子成分位置关系。空白处缺少determine的宾语，the direction充当determine的宾语。in which引导的是定语从句。故选B。
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