试题详情

A stream issued（ ）the bottom of the hill. from

__________ from the top of the hill, the city is just like a garden.

From the top of the hill you can get a beautiful （） of the entire park.（）。

ds a radio signal from the bottom of the ship to the sea-bed, from which it is reflected. A. The ma

is the ___ . A. vertical distance from the chart datum to the ocean bottom, plus the height of tid