托运行李发生损失时，旅客应当在自收到托运行李之日起（）提出异议。 A.7日内 B.1

点M（-2，k）在直线y=2x+1上，点M到x轴的距离d=______．

为确定诊断应采取的最适宜的检查是

A．血沉

B．血常规

C．胸液细菌培养

D．PPD试验

E．胸液常规及生化

胆固醇在体内不能转化生成

A．胆汁酸
B．肾上腺素皮质素
C．胆色素
D．性激素
E．维生素D₃

刘某为其子刘二(现年14岁)投了人身保险，至今已经缴费3年，受益人为其妻张某和其母肖某。以下正确的是_________。

A．设刘二在抢劫时摔成瘫痪，则保险公司不承担赔偿责任，但应当按照保险单退还现金价值，受益人为张某与肖某

B．如该人身保险合同为死亡险，则未经刘二书面同意，依照该保险合同签发的保险单不得转让或质押

C．设刘二经常经常有小偷小摸行为，经刘某夫妇屡教不改，夫妻二人商议下药毒死某子，但由于剂量未掌握准，毒成了植物人，则保险公司不承担给付保险金的责任

D．在C项中，保险公司仍然应当按保险单退还其现金价值，由于刘某与肖某未约定受益份额，故其二人平分

For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines: a never ending flood of words. In (1) a job or advancing in one, the ability to read and comprehend (2) can mean the difference between success and failure. Yet the unfortunate fact is that most of us are (3) readers. Most of us develop poor reading (4) at an early age, and never get over them. The main deficiency (5) in the actual stuff of language itself—words. Taken individually, words have (6) meaning until they are strung together into phrases, sentences and paragraphs. (7) , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing to (8) words or passages. Regression, the tendency to look back over (9) you have just read, is a common bad habit in reading. Another habit which (10) down the speed of reading is vocalization—sounding each word either orally or mentally as (11) reads.

To overcome these bad habits, some reading clinics use a device called an (12) , which moves a bar(or curtain) down the page at a predetermined speed. The bar is set at a slightly faster rate (13) the reader finds comfortable, in order to "stretch" him. The accelerator forces the reader to read fast, (14) word by word reading, regression and subvocalization practically impossible. At first (15) is sacrificed for speed. But when you learn to read ideas and concepts, you will not only read faster, (16) your comprehension will improve. Many people have found (17) reading skill drastically improved after some training. (18) Charlie Au, a business manager, for instance. His reading rate was a reasonably good 172 words a minute(19) the training; now it is an excellent 1,378 words a minute. He is delighted that how he can (20) a lot more reading material in a short period of time.

第（16）空应选择（）

A．but

B．nor

C．or

D．for