亚洲和欧洲的分界线是____山脉，乌拉尔河，大高加索山脉和____海峡。

____从宇宙空间拍摄的地球照片，更改证明地球是球体了。

    Taking good notes is a time-saving skill that will help you to become a better student in several ways.____Second,your notes are excellent materials to refer to when you are studying for a test.Third,note-taking offers variety to your study time and helps you to hold your interest.

    You will want to take notes during classroom discussions and while reading a textbook or doing research for a report.____whenever or however you take notes,keep in mind that note-taking is a selective process.____

    The following methods may work best for you.

    Read the text quickly to find the main facts and ideas in it.

    Carefully read the text and watch for words that can show main points and supporting facts.

    Write your notes in your own words.

    ____

    Note any questions or ideas you may have about what was said or written.

    As you take notes,you may want to use your own shorthand(速记).When you do,be sure that you understand your symbols and that you use them all the time,____

A.Use words,not complete sentences.

B.There are three practical note-taking methods.

C.You must write your notes on separate paper.

D.Otherwise,you may not be able to read your notes later.

E.You will also want to develop your own method for taking notes.

F.That means you must first decide what is important enough to include in your notes.

G.First,the simple act of writing something down makes it easier for you to understand and remember it.

中医说的“望、闻、问、切”中的“切”，指的是号脉，这里的“脉”是指（　　）

下面这段文字是按什么顺序来写的，请你找出具有标志性的词语。

    当指挥所下达“一小时准备”的命令的时候，在一阵阵轮机声中，一支威武的船队来到了试验海区。首先映入人们眼帘的是一艘艘执行警戒任务的舰艇，它们所过之处，留下了一道道泛着浪花的航迹；接着气象船、防护救生船驶来了，它们从容不迫地在各自的就位点下锚停泊；最后是一艘装有运载火箭的发射潜艇，它像一条大鲸鱼从水面行驶到海区以后，慢慢潜入水下。不一会，一架直升机来到了海区上空，不停地在那里盘旋，运载火箭的发射时间已经临近。