A. what B. which C. that D.it 相关知识点: 试题来源: 解析 3.C 【解析】考查定语从句的关系词。 句意:氧气是能助 燃的唯一气体吗?先行词为gas,指物,该空在从句中作 主语,不可省略,且先行词前有 the only 修饰,引导词只 能用 that 而不能用 which。 故选 C。 反馈 收藏 ...
解析 A核心短语/词汇:help sb./ sth. (to) do sth. 帮助某人/某物做某事句子译文:氧气是唯一的助燃气体吗? 本题考查定语从句。___helps fire burn 用来修饰之前的名词gas, 该从句的引导词在定语从句中做主语,不能省略,先行词有only 修饰时不能用which; what 不能引导定语从句,故选项A符合题意。反馈...
解析 A [解析]答案A 解析:考查定语从句.先行词 gas ,helps fire burn是定语从句,关系词在定语从句中做主语,指物,又因为先行词被the only修饰,故用that. 故选:A. 氧气是能帮助火燃烧的唯一气体. 当先行词被the only,the very,the same等修饰时,只能用that不用which....
" /> 【题文】Is oxygen the only gas ___ helps fire burn? A.that B./ C.what D.it 相关知识点: 试题来源: 解析 【答案】A 【解析】考查定语从句。Gas为先行词,在定从___ helps fire burn中作主语,且that作主语时不可省略。所以选A。 反馈 收藏 ...
百度试题 结果1 题目Is oxygen the only gas ___helps fire burn A. which B. what C. that D. it 相关知识点: 试题来源: 解析 C 反馈 收藏
百度试题 结果1 题目()10. Is oxygen the only gas helps fire burn? C. which D. what A. that B./ 相关知识点: 试题来源: 解析 A 反馈 收藏
百度试题 结果1 题目Is Oxygen the only gas ___ helps the fire to burn? A. what B. that C. which D. who 相关知识点: 试题来源: 解析 B 反馈 收藏
Is oxygen the only gas helps fire burn? A. that B. which C. what D. it 相关知识点: 试题来源: 解析 A 本题考查定语从句的关系代词that。解题步骤:①确定从句:从空格到句末。②确定成分:从句“ helps fire burn”缺少主语,从句不完整,因此需要关系代词。另外,当先行词有the only,the very等词...
Many people are familiar with oxygen, because it is a vital component of the respiration process; without it, most organisms will die within minutes. A number of forms of oxygen and its compounds can be found in nature. The gas can also be isolated and sold in pure form for an ...
A. Oxygen B. Nitrogen C. Carbon dioxide D. Hydrogen 相关知识点: 试题来源: 解析 C。本题考查温室效应的主要气体。二氧化碳是主要导致温室效应的气体。氧气(A 选项)和氮气(B 选项)不是温室效应的主要气体。氢气(D 选项)在大气中的含量很少,也不是温室效应的主要气体。反馈...