7.Scientists have advanced many theories about why human beings cry tears,none of ___ has been proved.( ) A. whom B. which C. what D. that相关知识点: 试题来源: 解析 分析 科学家们提出了很多关于人类为什么哭泣时流泪的理论,这些理论尚未得到证实. 解答 答案:B 本题考查的是关系代词的用法....
解析 答案:has been proved.由下文的tend to可知句子使用现在时,表示证明之事对现在造成的影响,因此主句谓语动词使用现在完成时,且prove与主语构成被动的关系,因此使用句型It has been proved that…"据证实…"。故答案为:has been proved.结果一 题目 It ___ (prove) that active people tend to have better...
___ has been proved is that animals and insects have their own languages. A. What B. As C. It D. That 相关知识点: 试题来源: 解析 [答案] A [分析]句意:已被证明的是动物和昆虫有自己的语言。根据is判断,此处为主语从句,分析该从句,缺少主语,用what。选A。反馈 收藏...
1•常用的prove 是不及物，但也有做Vt 证明，就可以被动。 2•where作定语，在从句中作主语。 3•there 是宾语 4•in 上海是介并结构，充当状语
1___ has been proved that animals and insects have their own languages. A. What B. It C. That D. Which 2 has been proved is that animals and insects have their own languages. .. s .. 3___ has been proved is that animals and insects have their own languages. A. if B. tha...
(决定) we made at the meeting have been proved useful. 相关知识点: 试题来源: 解析 1.decisions 句意:我们在会议上做出的决定被证明是有用的。根据“have”可知此处用为名词复数,结合中文提示可知,此处填名词 decision 的复数形式 decisions。故填 decisions。
Experiments have been proved children can be instructed to swim at a very early age. At a special swimming pool, children become expert at hold their breath under water even after they can walk. It is not long before they are very used to swimming that they can pick up weights from the...
百度试题 结果1 题目Your report have been proved!FAN YI 相关知识点: 试题来源: 解析 最佳答案你的报导已被采纳.反馈 收藏
actions that have been proved to be effective and efficient by a large body of evidence, [...] daccess-ods.un.org 因此,有大量证据证明是行之有 效且很有效率的两项措施, 即家庭和养育技能培训及筛查和简单干预,据报正在大范围内得到执行,这尤 其令人鼓舞。 daccess-ods.un.org [...] ...
1It has been proved that people have benefited from aspirin and penicillin since they were invented.Aspirin and penicillin have proved___ people since they were invented. 2 It has been proved that people have benefited from aspirin and penicillin since they were invented. Aspirin and penicillin...