B = -kA \quad \text{(where k is a positive scalar)} Then: |A+B|=|A−kA|=|(1−k)A| For this to equal |A|, we must have 1−k=1 or k=0, which again leads us back to B=0. 6. Conclusion: Therefore, the necessary implication of |A+B|=|A| is that vector B must...
1.通常在'it is found that'前面会有一个主语,即进行研究、调查、报告等的组织或者人。 2. 'it is found that'用于引述事实或者研究结论,需要有具体的数据或者信息来支撑。 3.在正式的文书或者学术论文中,可以使用更加正式的替代词,比如'according to the research conducted by'或者'as reported by'。 总之...
It is found thatthefeasible Trunk Road routeing is along the foreshore of Wan Chai and Causeway Bay. devb.gov.hk devb.gov.hk 結論是可行的主幹道 路線是沿灣仔及銅鑼灣海岸線的走線。 devb.gov.hk devb.gov.hk Ifit is found thatassistance is needed in the matter, ...
It is found that the eagles are becoming an endangered species in the Northern Hemisphere. A. TRUE B. FALSE 相关知识点: 试题来源: 解析 B 正确答案:B 解析:根据题干中的关键词Northern Hemisphere可定位至文章第五段,倒数最后一句提到“北半球大部分地区曾经有很多秃鹰,但是现在,不列颠群岛大部分地区...
her job(B)1. It is found that do les: nousework A. wive B. busbands . parerss Di hi(C)2. The undetlimed sentence It is adifferentstory for motherst probaltman A. mothers come from diflerent lumhes B. mothers like reading different stones. C. mothers work more hours than ...
Furthermore, it is obvious that the strength of a country’s economy is directly bound up with the efficiency of its agriculture and industry, and that this in turn rests upon the efforts of scientists and technologists of all kinds.长难句分析 句子主干 主语从句 主语从句 句子结构分析 【结构...
It is announced that a wallet has been found and can be ___ at the manager's office. A.declaredB.obtainedC.reclaimedD.recognized 答案 Creclaimed是“认领”。A.declared是“宣布;申报”;B.obtained是“取得”;D.recognized是“辨认,承认”。 结果四 题目 【题目】It is announced that a wallet ha...
It’s rumoured that she’s going to resign. 据传她打算辞职。It is rumoured that oil has been found in that area. 谣传该地区发现了石油。It is rumoured that he cheats on his wife. 据传他对他老婆不忠。It ...
1It is found that family size might cause people to be shy.Children with no brothers and sisters may be shy.Growing up alone,they often play by themselves.They are not able to develop the same social skills as children from big 8.8. A.countries B.cities C.teams D.families 2It is fo...
I have found it important that a new rule () set up to ban smoking in room. 老师说得对,这里填 is.is 的原型是 be. 因为 that 引导的【宾语从句里的主语 a new rule】是【第三人称单数】, 第三人称单数的一般现在时的 be 动词就用 is, 所以是【is】 set up to ban smoking in room. 首先...