上颌根尖片可显示的下颌骨解剖结构是哪一项（） A.喙突 B.外斜线 C.下颌小舌 D

男性，70岁，急诊行"颅内血肿清除术"，拔除气管插管后转入麻醉恢复室。呼之能应，体温37.5℃，脉搏112次／分，呼吸22次／分，血压130/90mmHg，SpO₂99%。2小时后病人突然呕吐大量胃内容物，并出现呼吸急促，烦躁不安，口唇轻度发绀，脉搏128次／分，呼吸28次／分，血压108/76mmHg，SpO₂86%。肺部有明显湿啰音。血气分析示PaO₂68mmHg，PaCO₂43mmHg。

该病人最有可能继发的其他并发症是（）

A.喉头水肿

B.支气管炎

C.坠积性肺炎

D.肺气肿

E.气管炎

冯某见邻居周某麦 * * 中了大奖便产生歹意，勾结魏某，谎称周某欠自己5万元贷款未还，请魏某协助索要，并承诺要回款项后给魏某5000元作为酬谢。魏某同意。某日按照约定，冯某和魏某以谈生意为名把周某诱骗到某宾馆房间内，共同将周某扣押，并有魏某对周某进行看管。次日，冯某和魏某对周某进行拳打脚踢，强迫周某拿钱。周某迫于无奈给妻子蒋某打电话，以朋友有事急需5万元现金为由，让蒋某将现金送到宾馆附近一公园交给冯某。冯某指派魏某到公园取钱。魏某取钱回到宾馆房间发现冯某不在，周某倒在窗前已经死亡。见此情形，魏某到公安机关投案，并将协助公安机关将冯某抓获归案。事后查明，周某因爬窗逃跑被冯某用木棒猛击脑部死亡。一审过程中，公诉人对被告人冯某、魏某同时进行讯问后，经审判长许可周某的妻子蒋某以附带民事诉讼原告的身份，就犯罪及财产损失事实向冯某、魏某发问。宾馆服务人员江某旁听了案件审理，并应控制方要求就周某的被害情况向法庭作证，先后回答了辩护人、公诉人及审判长的发问。审理后，冯某被判处死刑，魏某被判处有期徒刑三年，并赔偿原告损失10万元。宣判后冯某提出上诉，二审法院认为原判决认定事实和使用法律正确、量刑适当，维持了原判，丙上报最高人民法院核准。 根据案情，分析下列问题： （1）冯某将周某扣押向其索要5万元的行为构成何种罪犯？为什么？ （2）魏某将周某扣押向其索要5万元的行为构成何种罪犯？为什么？ （3）魏某的投案行为是否成立自首与立功？为什么？ （4）请指出在案件一审过程中，在程序方面的不当之处.

跨省、自治区、直辖市引进的乳用动物、种用动物到达输入地后，货主应当按照国务院兽医主管部门的规定对引进的乳用动物、种用动物进行（）。

A、检疫

B、消毒

C、健康检查

D、隔离观察

Honeybees are disappearing for unknown reasons around the United States．Last winter, bees disappeared from 23 percent of American beekeeping businesses．Causes of the phenomenon, however, have remained a mystery．

Now, scientists from several universities and the United States Department of Agriculture say they have a possible explanation for the bee decline（数量下降）．It is a little known virus called Israeli acute--paralysis virus （IAPV）．The virus kills bees．Researchers in Israel first described it in 2004 , but until now, bee experts hadn’t paid much attention to it．

When trying to find out why the bees were disappearing, a research team at Columbia University studied bee colonies （群体）, some with and the others without decline．The research turned up large numbers of two types of fungi （真菌） once suspected of causing the bee decline．The research results, however, showed that the fungi were almost as common in colonies without a decline as they were in colonies with a decline．The researchers concluded that the two fungi probably weren’t the cause．

Studies of the presence of IAPV, however, showed more interesting information．In those studies, done by a team at Pennsylvania State University in University Park, the virus showed up in 83 percent of samples from colonies with symptoms （症状）．Only five percent of samples from symptomless colonies had it．

Scientists still don’t know whether IAPIV can single--handedly cause the bee decline．They believe that even if the virus is making colonies sick , it could have a partner in crime．It’s possible, for instance, that insects or chemicals in the environment weaken bees, making them more likely to catch IAPV．

Scientists are still trying to figure out how IAPV came to the United States．The United States currently allows bee products to be imported from Canada, Australia, and New Zealand．If it turns out that this trade is spreading disease, the rules might eventually change．

小题1:According to the passage ，IAPV is a virus that ______．

A．hasn’t attracted much attention

B．well-known to doctors and scientist

C．was first found by Austrian researchers

D．is dangerous to animals and human beings小题2:The underlined sentence in the fifth paragraph probably means______．

A．the virus could also cause other damages

B．there must be something that is the real cause

C．IAPV is not the only cause for the bee decline

D．the virus may be caused by the polluted environment小题3:From the third and fourth paragraphs, we know researchers draw their conclusions by means of _______．

A．calculating

B．comparing

C．examining

D．investigating小题4:What still remains unknown to American scientists according to the passage?

A．How and why to kill IAPV．

B．How IAPV came to America．

C．Whether bee products should be imported．

D．How to change the rules of the bee products trade．小题5:The best title for this passage would be _____．

A．Bee Disease

B．How to Kill IAPV

C．A Virus—IAPV

D．Two Types of Fungi

红细胞膜主要由哪类蛋白质和脂质组成（）

A.蛋白质与脂质的比值约为1：1

B.蛋白质与脂质的比值约为1：2

C.蛋白质与脂质的比值约为1：3

D.蛋白质与脂质的比值约为1：4

E.蛋白质与脂质的比值约为1：5