問題詳情

(2)There are a lot of things we don’t knowabout the ocean. Large parts of the ocean floorhave never been seen. People believe that it’simportant to explore and learn more about theseplaces.But how can we explore the bottom of theocean? There is too much water pressure for ourbodies to go down there.We need an ROV toexplore it. An ROV is a machine that can moveand take pictures under water, and it is controlledby the people on the ship. It can work well underthe water pressure at the ocean bottom. Some caneven bring rocks from the ocean bottom up to thewater surface for people to study. ROVs can helpus learn more about our ocean world and help ustake better care of it.phpaue5wx
46. What does “some”refer to in the reading?
(A) People
(B) ROVs
(C) Oceans
(D) Place

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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