半正定矩阵的行列式

I'd like to make a cake some flour,sugaI'd like to make a cake some flour,sugar,milk,cheese and eggs.空格处填 use by in with? Miss Emma needed some flour to make a cake.（改成反义疑问句）Miss Emma needed some flour to make a cake,____ ____ 为什么不是needn't she?情态动词引导的不对吗? Jack has won the first prize,as it often happens.as 引导的是定语从句吗?如果是,它在从句中做什么成分? You could have won the first prize,___?翻译疑问句为什么 高一地理关于角速度和线速度的知识点两级有角速度吗?两级有线速度吗?是多少? 角速度具体的概念 my flat is _____(100-square-metre/100 square metres) My flat is 120 square metres in size.(同义句)My flat has 什么 什么 什么120 square metres. The square is about 35000 square meters in areas它的同义句是要改成The the square is about 35000 square meters They live in a room which is()15 square meters.选项not more than,no less than,no more than,not less than. he won the prize for the best cat.怎么翻译? 求女子英文名,谐音jun（四声）yu（三声）,拜托.如果起得好会加分. 如果介词短语放在句首,那么像including这类词后面的谓语怎么办也要加ING吗?还是including就当个介词来看?那么BE动词呢那这么说 后面的谓语动词就用原形了?和介词无关?> 介词短语可不可以做谓语 例如：He lack of money 这句话对吗? 我们经过一冬的苦干,河道终于疏通了(苦干可以是谓语啊) 请讲一下什么是介词短语 谁有的中文歌词? 求can you feel it（非诚勿扰上的）lrc歌词RT Is this your___? 水上飞机有哪些功能要具体一点 水上飞机有哪些作用ddddddddd 水上飞机有几种 水上飞机种类有哪些 Everything will be change,nothing is forever.请问这句话是什麽意思,然後该怎麼评论急谢谢 Everything will change to be better tomorrow.意思明天会更好 能这么说吧? 英语中vegetable和fruit为什么fruit是不可数名词而vegetable是可数名词 初一英语翻译Nutrition fruit and vegetable porridge 水上飞机怎么画?急用 水上飞机的作用 水上飞机有什么作用 I miss you every day!I will change the name,but the change never change!这中文怎么说 John Smith is (an) honest man.这里面为什么用an?The dog is (a) useful animal.这句里面为什么用a?最好详细一点, Honest personhood,practical work,work hard,enjoy the life! 水上飞机的用途不要事例只要答案