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A team of engineers has been developing a space cleanup satellite to eliminate m
A team of engineers has been developing a space cleanup satellite to eliminate m
游客
2023-10-23
11
管理
问题
A team of engineers has been developing a space cleanup satellite to eliminate man-made orbital debris, ________broken-down satellites or tossed-away rocket stages.
选项
A、be it
B、if it is
C、whether it is
D、no matter
答案
A
解析
省略倒装题。本题逗号后是一个省略了句子成分的让步状语从句,补充完整后应为…whether it might be broken-down satellites or tossed—away rocket stages。让步状语有条件的意味,通常使用虚拟语气。如果省略引导词whether,则从句应用倒装结构,其中might可以省略,故A为答案。if引导让步状语从句时不能与or连用,排除B;将whether it is填入空格从字面意思上来看没有大问题,但这样的表达更口语化,不是特别规范,排除C;no matter引导状语从句时,通常与what、who、when、where、which、how等疑问词连用,而且需要搭配主语、谓语或表语,单独的no matter无法使句子完整,排除D。
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