胰高血糖素对糖代谢的作用是（） A.促进糖原分解和糖异生 B.促进糖原分解，抑制糖异

关于CT成像过程的叙述，错误的是

A．计算机只能接受数字量进行运算
B．计算机运算结果只能以数字量输出
C．凡是从时间到数值都连续变化的物理量称模拟量
D．A/D和D/A转换器是计算机控制系统中联系外界的重要部件
E．A/D转换实现数字信号到模拟信号的转换

商业对经济增长的贡献程度可通过（）、商业增长贡献额和商业产出弹性系数等指标来衡量。

旅游服务

××局关于解决消除安全隐患专项经费的请示

××政府：
根据各级政府有关严防安全事故发生的紧急通知要求，我局领导高度重视，组织专人进行了一次安全大检查，发现我县还存在滑坡、危岩、危房、危旧线路、有毒有害物质储存不合理、消防设施严重不足等安全隐患。虽然我局每年都从有限的经费中尽力安排经费进行安全隐患治理，但终因经费有限，没有从根本上解决这些问题。为确保全县人民的生命安全，彻底消除安全隐患，特请拨付专项经费2000万元。
二○一○年五月三十日

以下不是请示特点的是( )。

A．超前性

B．说明性

C．单一性

D．重陈述

In the following passage, there are 20 blanks representing the words that are missing from the context. You are to put back in each of the blanks the missing word． The time for this section is 20 minutes.
Where do you really come from And how did you get (1) where you live today DNA studies suggest that all humans today (2) from a group of African ancestors who—about 60,000 years ago— (3) a remarkable journey.
The Genographic Project is seeking to chart new (4) about the migratory history of the human species by (5) sophisticated laboratory and computer analysis of DNA contributed by hundreds of (6) of people from around the world． In this unprecedented and real-time (7) effort, the Genographic Project is closing the gaps of what science (8) today about mankind’s ancient migration stories.
The Genographic Project is a five-year (9) partnership led by National Geographic Explorer-in-Residence Dr. Spencer Wells. Dr. (10) and a team of renowned international scientists and IBM researchers, are (11) cutting-edge genetic and computational technologies to analyze historical patterns in DNA (12) participants around the world to better understand our human genetic roots. (13) three components of the project are: to gather field research data (14) collaboration with indigenous and traditional peoples around the world; to invite (15) general public to join the project by purchasing a Genographic Project Public Participation Kit; (16) to use proceeds from Genographic Public Participation Kit sales to further (17) research and the Genographic Legacy Fund which in (18) supports indigenous conservation and revitalization projects. The Project is anonymous, non-medical, (19) , non-profit and non-commercial and all results will be placed in the (20) domain following scientific peer publication.