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题库 / OG2018V-SC-285
By using a process called echolocation to analyze the echoes of the high-pitched sounds they produce, bats can determine not only the distance to an object, but they also can determine its shape and size and the direction in which it is moving.
can determine not only the distance to an object, but they also can determine
not only can determine the distance to an object but also
can determine not only the distance to an object but also
not only can determine its distance from an object but also
can determine not only their distance from an object, but they can also determine
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not only...but also...平行结构