鼻咽癌在PFB方案行上颌动脉化疗灌注的基础上进行栓塞化疗时，每侧顺铂微球的用量为（）

下列各句中，成语使用恰当的一项是（   ）

A．年轻的科学工作者们以无所不为的勇气，克服重重困难，去探索大自然的奥秘。

B．您就别再难为这孩子了，他既然不肯讲，就一定有难言之隐的苦衷。

C．他创作了一批优秀的新闻作品，在中国新闻史上留下了浓墨重彩的一笔。

D．他儿子正值豆蔻年华，理应努力学习文化知识，没想到却整天沉迷于网络游戏。

阅读理解。

     "How can I learn English well?" This is a question many students ask. In my opinion, the most effective

way is to learn lessons by heart. If you can recite the text and write it out, you've learned it fairly well. And

if you can retell, in your own words, what the lesson is about, you're a very successful learner indeed. Your

English will be quite perfect. This is a difficult task. However, if you try to learn by heart only part of each

lesson, you'll find it not so hard as you might have expected.

     Learning this way, you will make rapid progress. Of course, writing is also necessary. It helps you a lot

on your way to success in English.

     Equally important is to feel the language. You should be able to laugh at jokes and be shocked at bad news.

When using English, try to forget your mother tongue. Instead of helping you, your own language gets in your

way. So, never try to see English through translation.

1. In the writer's opinion, the most effective way in learning English is _____.

A. to practise speaking, writing and feeling it

B. to memorize the English words and grammar

C. to translate everything into your own language

D. to forget your own native language

2. "Instead of helping you, your own language gets in your way." This sentence means that memorizing your

    own language can _____.

A. stop you mastering (having a good command of) English

B. help you to study English well

C. make English easy to learn

D. help you notice mistakes

3. "To feel the language" here means _____.

A. to get the knowledge of English by touching

B. to read and write English

C. to experience the rich meaning of the language

D. to translate English into your own by imagining

在数据文件的包含主码的属性集上建立的索引称为（）。

A．聚集索引

B．主索引

C．稠密索引

D．辅索引

下列有关我国古代四大发明的表述，正确的是( )。

A．西汉时期蔡伦改进了造纸术
B．隋唐时期已经有了活字印刷的书籍
C．唐朝时发明了管形火器“突火枪”
D．宋代在航海交通上已普遍使用指南针

下列各项不属于干姜附子汤证症状的是（）

A.不呕不渴

B.昼日烦躁

C.脉沉微

D.心下悸

E.夜而安静