若孔的实际尺寸大于轴的实际尺寸，且轴在孔中可以自由转动，这样的配合称为（）。（A）间

患者32岁，出生时难产史。2个月前施工时不慎从3米高处摔下，头部着地，当时意识障碍数小时，后患者出现2次四肢抽动，伴意识丧失，每次持续约5分钟。EEG示局灶性痫样放电。

本例首选药物是（）。

A.扑米酮（扑癫酮）

B.卡马西平

C.丙戊酸钠

D.氯硝西泮

E.苯巴比妥

American beekeeping operations have been hit hard by what scientists call Colony Collapse Disorder. Almost half of their worker bees have disappeared during the past season. C.C.D. has also been reported in Israel, Europe and South America. Bees fly away from the hive and never return. Sometimes they are found dead; other times they are never found. Many crops and trees depend on pollination （授粉） by bees to help them grow.

A new report says virus may be at least partly responsible for the disorder in honey bee colonies in the United States. This virus is called Israeli Acute Paralysis Virus. It was first identified in Israel in 2004. Ian Lipkin at Columbia University in New York and a team reported the new findings in Science magazine. Doctor Lipkin says the virus may not be the only cause. He says it may work with other causes to produce the collapse disorder.

The team found the virus in colonies with the help of a map of honey bee genes that was published last year. They examined thirty colonies affected by the disorder. They found evidence of the virus in twenty – five of them, and in one healthy colony. The next step is further testing of healthy hives.

The researchers suggested that the United States may have imported the disorder in bees from Australia. They say the bees may carry the virus but not be affected.

The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroa mite. This insect attacks honey bees, which could make the disorder more likely to affect a hive. Australian bee producers reject these suspicions.

And some researchers suspect that bee production in the United States is down mainly because of the weather. Honey bees gather nectar（花蜜） from flowers and trees. The sweet liquid gives them food and material to make honey. But cold weather this spring in the Midwest reduced the flow of nectar in many flowers. Many bees may have starved. Dry weather in areas of the country could also be playing a part.

Wayne Esaias is a NASA space agency scientist who keeps bees in his free time. He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.

小题1: What is the author’s attitude to the causes of the bee disorder?

A．critical

B．neutral

C．supportive

D．negative小题2: What is the passage mainly about?

A．American beekeeping industry has been strongly influenced by the bee disorder.

B．Studies are being carried out on the causes of the bee disorder, but questions remain.

C．How the causes of the bee disorder in U.S have been found.

D．The bee production in U.S is down.小题3: How many possibilities may be involved in the bee disorder according to the passage?

A．Three

B．Four

C．Five

D．Six小题4:We can infer that         from the passage.

A．Israeli acute paralysis virus should be responsible for the disorder.

B．The solution to the disorder will be found eventually.

C．American bees are more likely to defend themselves against hurt from other insects than Australian ones.

D．Many crop and plant production in U.S may be influenced by the bee disorder.

功能失调性大出血病人护理

A．绝对卧床休息

B．给高蛋白、高维生素、含铁食品

C．给氧、给液

D．做手术止血准备

E．给大剂量雌激素口服

某拥有数百家百货商店的企业有一个网络，各商店利用该网络将销售数据传送给总部。该网络同时也被用于：供应商提交再订购单。商店向总部传送专项订单。区域销售中心向商店传送发货和货物脱销信息。总公司办公室分发培训资料。商店、区域销售中心和总公司员工共享所有他们认为有用的信息。为了适应大量数据传送，大型商店拥有他们自己的卫星收发站。小型商店则使用租用线路。将纸质文件转换成计算机文件需要何种技术？（）

A.光学字符识别（OCR）

B.电子数据交换（EDI）

C.条码扫描

D.连接和合并

男性，35岁。头部外伤1天。在住院观察期间，出现剧烈头痛，伴呕吐，并进行性加重。查体：面色苍白，躁动，意识朦胧，颈抗（+），左瞳孔0.5cm，对光反射减弱，右瞳孔0.3cm。右侧肢体少动，巴氏征（+）。X线平片示左颞有线形骨折。

首先应考虑的诊断是（）

A.脑梗死

B.蛛网膜下腔出血

C.高血压脑出血

D.外伤性颅内血肿致小脑幕切迹疝

E.原发性脑干损伤