反映骨骼的发育状况和人体纵向发育水平的重要指标是（）A.体型 B.身高 C.体重 D

在“用单摆测定重力加速度”的实验中：

（1）甲同学分别选用三种材料不同、直径2cm的实心球做实验，各组实验的测量数据如下表。若要计算当地的重力加速度，应选用第____________组实验数据。

（2）乙同学选择了合理的实验装置后，测量出几组不同摆长L和周期T的数值，画出如图的T²-L图象，并算出图线的斜率为k，则当地的重力加速度g=____________（用符号表示）。

（3）丙、丁两同学合作测量重力加速度，测出一组数据。丙用T²-L图像法处理求得重力加速度为g_丙；丁用公式法处理求得重力加速度为g_丁，实验后他们发现测摆长时忘了加上摆球的半径，则丙、丁两同学计算出的重力加速度数值关系为g_丙____________g_丁（填“>”“<”“=”）。

基金的会计复核包括( )。

A．基金财务复核

B．基金头寸复核

C．基金业绩复核

D．基金规模复核

阅读理解。

     Should ecigarettes (electronic cigarettes) be a new choice for the smokers trying to get rid

of the habit? Reactions from Americans are mixed．More than half of the people questioned in

a survey think ecigarettes should be controlled by the US Food and Drug Administration,but 47

percent believe the ecigarettes should be available to the smokers who want to quit．

     "In the hunt for a safer cigarette,ecigarettes are becoming a popular choice among those either

 trying to quit or looking to replace standard tobacco smoke with an alternative that manufacturers

claim to be safer," Zogby International,which conducted the survey,said in a statement．

     About half of the 4,611 adults who took part in the survey had heard about ecigarettes,which

are batterypowered,or rechargeable cigarettes that vaporize a liquid nicotine solution．They do not

produce smoke but a water vapor without smell．Sold mostly on the Internet,ecigarettes were first

made in China．

     Last year the World Health Organization (WHO) warned against using ecigarettes,saying there

was no evidence to prove they were safe or helped smokers break the habit．The WHO said people

who smoke ecigarettes breathe in a fine fog of nicotine into the lungs．

     Nearly a third of people questioned in the survey think that ecigarettes should be allowed in places

where smoking is forbidden,because they don't produce smoke,but 46 percent disagree．Men who

were aware of the availability of ecigarettes were more likely than women to say they should be a choice

available to smokers who want to quit．Young people,aged 18－29,and singles were the groups most

open to trying ecigarettes．Smoking is the single largest cause of preventable death worldwide,according

to the WHO．

1．What can we learn from Paragraph 1?

A．American smokers ought to try ecigarettes．

B．Americans have different opinions about ecigarettes．

C．Every kind of cigarettes should be forbidden in America．

D．Most of the Americans don't like ecigarettes．

2．According to Zogby International,ecigarettes ______．

A．are much safer than common cigarettes

B．are popular among people who want to quit smoking

C．will take the place of traditional cigarettes

D．are produced in a safer way by manufacturers

3．What do we know about ecigarettes from the passage?

A．Most Americans are familiar with them．

B．They are a good choice as there is no nicotine．

C．They produce a water vapor that can't be seen．

D．Most people buy them on the Internet．

4．What's the attitude of the WHO towards ecigarettes?

A．Negative．  

B．Supportive．

C．Doubtful．  

D．Indifferent．

某钢厂的自动化仪表安装工程由某机电公司承建。施工方案编制后，．送总工程师审核批准。总工程师发现仪表调校室环境、设备零部件的安装以及某些工段的施工程序安排尚有缺陷，气体压力表取源部件安装作业指导书图示部分有错误，仪表线路与仪表管道的安装都与要求不符，于是要求修改后再签字确认批准。

在水平管道上安装测量气体压力取源部件时，取压点的方位在管道的（）。

A．上半部

B．中部

C．下半部

D．与管道水平中心线成0～45°角的范围内

根据中国电信无线宽带VPDN业务数据配置规范，对于可靠性要求较高的用户，可采用双链路接入不同的PE设备，建议采用（）路由协议。

A.静态

B.OSPF

C.EBGP

D.RIP