问题 单项选择题 A1/A2型题

哪项不是胃癌的癌前病变()

A.慢性萎缩性胃炎

B.腺瘤型胃息肉

C.残胃炎

D.慢性浅表性胃炎

E.少数胃溃疡

答案

参考答案:D

解析:胃癌的癌前状态分为癌前疾病和癌前病变。前者指与胃癌相关的胃良性疾病,有发生胃癌的危险性,如慢性萎缩性胃炎,胃息肉(炎性息肉约占80%,直径多在2cm以下,癌变率低,腺瘤性息肉癌变几率较高,特别是直径>2cm的广基息肉),胃溃疡,残胃炎(癌变多在毕Ⅱ式胃切除术后10~15年发生)。后者指较易转变为癌组织的病理学变化,如肠型化生(分为小肠型及大肠型)和异性增生。

阅读理解

阅读理解。

      What are the best ways to learn new words? Once you have learned new words, how can you remember

them?

         1   .What is your reason for wanting to improve your vocabulary-for a purpose, like the SAT, or for fun

and general self-improvement?    2    For example, there are books specifically written with methods for

increasing one's vocabulary for SAT test-taking. 

       3   Some people need to use what they learn in order for it to stick-as in conversation and writing.Others

succeed by taking quizzes. Still others are good at memorizing. 

     We tend to remember words more easily when we read about them in meaningful context, when we see

that they are useful and worth remembering, and also when they have been fully explained.    4   Most

word-of-the-day offerings supply the definition as well as an example sentence or two.

     Studies have shown that a new word will stay in your vocabulary if it is regularly reinforced (强化) through

use and reading.    5   It is great to have a quiz book with you when you have to wait in places like a dentist's

office.Keeping a quiz book in the car and on the bedside table is good, too.

A. If you want to learn new words, knowing new words' meanings in your native language is in the first

   place.

B. Also,you can examine how you learn best, especially word-based information.

C. Taking word quizzes is a fun way to spend a few minutes learning words.

D. Getting many kinds of methods towards your learning goal by reading.

E. Knowing how to use a word is just as important as knowing its meaning.

F. If you want to learn new words, you have to take a couple of things into consideration.

G. If you have a goal, it is good to read about different approaches toward achieving the goal.

单项选择题 B1型题