再生障碍性贫血表现为 A．MCV正常，RDW增高 B．MCV增大，RDW正常 C．M

有关蔓状血管瘤的叙述哪项错误

A．由较粗的血管构成

B．范围较大

C．不会侵犯骨组织

D．有的可以听到血管杂音

E．动脉也可参与其构成

化疗在非精原细胞性生殖细胞瘤中有一定作用，其主要适应证包括（）

A.预后不良的Ⅰ期NSGCT，已侵及精索或睾丸，切除后肿瘤标志物持续升高者

B.预后不良的Ⅰ期NSGCT，已侵及精索或睾丸，切除后肿瘤标志物不再升高者

C.Ⅱa~Ⅳ期的NSGCT

D.Ⅱb~Ⅳ期的NSGCT

E.晚期难治的肿瘤复发或用药无效，采用挽救性化疗方案者

阅读理解。

     Students will need to use all of their skills in order to understand the reading selections in Reader's

Choice.

     __1__ These selections provide practice on employing different reading skills to get the message

of the writer. They also give students practice in four basic reading skills:skimming, scanning, reading

for thorough comprehension, and critical reading.

     Skimming involves reading quickly through a text to get an overall idea of its contents. This kind of

rapid reading is suitable when you are trying to decide if careful reading is desirable or  __2__

     Like skimming, scanning is also quick reading. However, in this case the search is more concentrated.

__3__  When you read to find a particular date or number, you are scanning.

     Reading for thorough comprehension is carefully reading in order to understand the total  meaning

of the passage. At this level of comprehension the reader is able to summarize the author's ideas __4__.

     Critical reading demands that a reader makes judgments about what he or she reads. This kind of

reading requires posting and answering questions such as "__5__", "Do I share the author's point of

view?" and "Am I convinced by the author's arguments and evidence?

A. Does my own experience support that of the author?

B. Reader's Choice is one of the most popular magazines in the world.

C. but has not yet made a critical evaluation of those ideas.

D. The book contains many types of selections on a wide variety of topics.

E. To scan is to read quickly in order to find out specific information.

F. Do I know about the author?

G. when there is no time to read something carefully.

异步通信特点之一是（）

A.设备复杂

B.设备简单

C.传输效率高

D.时钟要求高

特别关税包括报复性关税、反倾销关税、反补贴关税、保障性关税。征收特别关税由( )决定。

A．海关总署
B．国家税务总局
C．财政部
D．国务院关税税则委员会