Both longitude and latitude ______ in degrees, minutes and seconds.

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问题 Both longitude and latitude ______ in degrees, minutes and seconds.

选项 A、measuring
B、measured
C、are measured
D、being measured

答案C

解析 所填之处前面是主语,后面是状语,此处应是谓语,根据句意,此处又应用被动语态,所以C为答案。
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