What system of the body IS made of the brain(大脑),the spinal cord(脊髓),anWhat system of the body IS made of the brain（大脑）,the spinal cord（脊髓）,and the nerves（神经）?

What accounts for the success of the Octopus system? what is the meaning of fields system同上 What is the greatest feature of American law system? electrical system of the 英语翻译(1).Describe the brief history of the Bretton Words system(2).Why did the Bretton Words system collapse?(3).What is the second amendment?(4).Has the present system solved the the problems of the Bretton Words system? 用英语回答What is the definition of a system of equations? 翻译the system of number What are the main principles of American political system?求意思 和答案 .What is a federal system? What are some of the major differences between a federal system and a confederation?求答案 orders of interest是什么意思Figure 7 shows at what speeds orders of interest pass through torsional resonances of the system. what system of the human body is made up of blood,blood vessels or the heart翻译并回答 What system of the body IS made of the brain(大脑),the spinal cord(脊髓),anWhat system of the body IS made of the brain（大脑）,the spinal cord（脊髓）,and the nerves（神经）? What is the best educational system What's the system?补充图片 Exercise 1.Consider the following system of linear equations where a is a number:2x + 3y - z = a-4x - 6y = a-x- z = a注：这仨是个方程组 大括号打不进来a) For what values of a does the system above have a unique solution?b) For what val Science:what is the advantage of a common system of namesLike we have Latin names and common names 请用英语回答,不用翻译.1.how do you compare it with other means of transportation in beijing?2.do you think beijing should deveiop a more extensive underground system?why?3.what do you think of the service of the public transport system in b top-of-the-mind awareness system