（）的变异系数大，种间隔离多，是地球上最多的物种。 A.哺乳动物 B.鱼类 C.植物

根据下面的新闻材料，拟一条不超过15个字的一句话新闻。（3分）

新华社电  近日，一辆俄罗斯制造的黑色超豪华轿车在俄各大电视台露面。这辆典型的俄式风格轿车将取代德国产的奔驰S600，成为总统普京的新座驾。

普京数月前下令，要求制造能显示爱国精神的国产轿车，取代目前俄高官常用的德国品牌汽车。这辆“吉尔(厂商首字母缩写)-4112P”拥有扁长方形的车头和车灯，是俄历史最悠久的汽车制造商利哈乔夫汽车厂经6年研发而成。轿车重3吨半，配有7.7升引擎和6挡自动变速箱，时速可达220公里，每百公里油耗25升。轿车配有备份点火系统，可在任何情况下启动。

答：_________________________________________________________________

下壁右心室梗死（）

A.V~VST段抬高，异常Q波形成

B.Ⅱ、Ⅲ、aVFST段抬高，异常Q波形成

C.V5~V7、Ⅱ、Ⅲ、aVF、ST段抬高，异常Q波形成

D.Ⅰ、aVLST段抬高，异常Q波形成

E.Ⅱ、Ⅲ、aVF、V3R~V6RST段抬高，异常Q波形成

患者，女，每逢经前2天起头痛，巅顶尤剧，或伴头晕目眩，烦躁易怒，口苦咽干。诊断为

A．经行头痛

B．经行眩晕

C．经行情志异常

D．周期性精神病

E．以上都不是

     No one wants to look stupid or do the wrong thing at a new job. It is important to make the right

impression from the very first day. You will face new people. You will be in a new place.

     It may be difficult to know what to do. Here are five tips to help you make it through the first days at

a new job:

     1. First impressions can last forever. Make sure you make a good one. Before your first day, find out

if your new job has a dress code (rules about what you can wear to work). If so, be sure to follow it. No matter what, always be neat and clean.

     2. Get to work on time. Give yourself an extra15 minutes to make sure you arrive on time.

     3. Pay attention to introductions. One of the first things that your supervisor may do is to introduce

you to co-workers. These co-workers will be important to you. They are the ones who will answer your

questions when the boss is not around.

     4. Ask plenty of questions. Make sure that your supervisor has told you what is expected of you. If

he or she has not told you your duties, ask for a list. Set daily and weekly goals for yourself.

     5. Never be the first one to leave. Observe(观察) what your co-workers do around quitting time

(下班时间). It does not look good for you to be eager to leave.

1. Before you arrive at work on the first day, you should __________.

A. dress in a right way      

B. introduce yourself

C. know your duties          

D. know your co-workers well

2. According to the passage, which of the following statements is TRUE?

A. You should be the first one to arrive at work.

B. You should ask your co-workers about your duties.

C. You should not be eager to go back home after work.

D. You are required to arrive 15 minutes earlier.

3. According to the passage, your supervisor is most likely your _____________.

A. visitor

B. teacher      

C. workmate

D. leader

4. What is the best title for this passage?

A. Getting a New Job.        

B. Tips on How to Work.

C. The First-day Work.      

D. The Importance of Co-workers.

骨折一期愈合和二期愈合的特点