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题库 / OG2017V-SC-233
Nearly two tons of nuclear-reactor fuel have already been put into orbit around the Earth, and the chances of a collision involving such material increase greatly as the amount of both space debris and satellites continue to rise.
as the amount of both space debris and satellites continue to rise
as the rise continues in both the amount of satellites and space debris
as the amount of space debris and the number of satellites continue to rise
with the continually increasing amount of space debris and the number of satellites
with the amount of space debris continuing to increase along with the number of satellites
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number - 用于可数对象+可数名词；
amount - 用于不可数对象+集合名词；
·The number of students this year is increased.(注意the number of / a number of的区别：the number of + 复数名词 + 单数谓语动词；a number of + 复数名词+复数谓语词)
在结构上as引导从句表原因，with表伴随
C correct
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