纵膈畸胎瘤肿瘤确诊的特异性征象是（） A.肿块边缘的弧形钙化 B.病变密度极其不均

第二节任务型阅读（共10小题；每小题1分，满分10分）
请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。
注意：每空格1个单词。
When we think about education and language learning, we are most likely to think of books. Although there are lots of language learning methods, many people still prefer to learn only by using books. So what are the advantages of learning a language from a book?
Here are its advantages: firstly, you can take language books wherever you go conveniently and you can use them whenever you want. Secondly, they are easy to follow because the courses in them are usually planned for you in strict order starting from the most basic concepts to the more complex. Thirdly, if you are unsure of something, you can continue to work on it as quickly as you like. Lastly, books are likely to have a lot of vocabulary and a lot of topics so you will get great value out of a book with lots of materials in it.
Using books to study a language has disadvantages, too. All textbooks and dictionaries usually include some kind of pronunciation guide. These are helpful when there is no other way to learn, but this can't help you practice your pronunciation. With an audio method, you can compare your pronunciation to that of a native speaker. Besides, some words are spoken faster in one sentence or slower in another, so the pronunciation of a word may change according to the emotion or feeling you want to convey. Also, books can’t actually help you hear the language with its unique rhythms spoken by native speakers. With an audio language learning method, you will be able to hear and understand the language better.
Therefore, if you can supplemental（补充）your book with some other language tools, such as audio tapes, internet radio or resources such as music or television, you will have a much better chance of understanding the books' pronunciation guide and using it to get a good grasp of the spoken language.

Title: One of the Language Learning 81.__________— Using Books
Themes	To get a good grasp of the spoken language, we need to combine language learning books with an audio component
82.__________	*It’s 83. __________ and easy to take books with you. You can use them at anytime. *It’s easy to 84. __________ books because they are arranged with the most basic information at the start to the more complicated concepts later on. *You can take your time with a book and use it at our own pace. *You will get great 85. __________ out of a book which 86. __________ lots of materials in it.
Disadvantages	*It can’t help you practice and compare your 87.__________ with that of a native speaker. *It can’t help you improve your listening 88. __________.
89. __________	We should use other language learning 90. __________ to help us learn a language properly.