单选题Satellites were launched （） low orbit for weather and military applications.AonBaroundCinDwith
单选题
Satellites were launched （） low orbit for weather and military applications.
A
on
B
around
C
in
D
with
参考解析
解析：
本题翻译为：卫星被发射至低轨道上，以用于天气和军事应用。本题考查“lanuch”的用法。Launchon表示“开始，着手”，本题中发射至低轨道，并没有开始的意思。Launch与around、in以及with并不是搭配词组连接，需要根据题意来选择介词。本题是卫星被发射至低轨道上，而并不是在低轨道的周围（around），也不是用（with）低轨道来发射，因此选C。
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