不符合骨转移瘤特点的是（） A.几乎所有恶性肿瘤均可转移至骨 B.以骨盆、股骨及脊椎

题型：单项选择题 A1型题

问题：

不符合骨转移瘤特点的是（）

A.几乎所有恶性肿瘤均可转移至骨

B.以骨盆、股骨及脊椎骨最多见

C.X线表现多为溶骨型

D.免疫组织化学染色可帮助寻找原发灶

E.转移瘤中不出现反应性骨质增生

考点：临床病理科住院医师骨关节骨关节题库
题型：单项选择题 A1型题
阅读短文,根据短文内容补全表格中所缺的信息,每空一词。
     Do you still get free plastic bags(塑料袋) from the supermarkets? Things have changed.
     China has decided to take action to stop the use of free plastic bags at shops and supermarkets, and
people have to pay for using plastic bags. The rule(规定) started on June 1. It came because our country
tried to make litter less.
     The Chinese once used about 3,000,000,000   plastic   shopping  bags  a   day, and   they made the
environment pollution more serious and wasted   a   lot of energy as well. People throw the used plastic
bags away here and there. The   thrown-away  plastic bags are  not   easy  to break .   So the Chinese
government encourages people to bring their own bags or baskets for shopping.
     What kind of shopping bag is the best to bring? Some  students   have good ideas. They make their
own shopping bags. They use old clothes to make cloth bags (布 袋)  , and send them to their parents
as presents. They also ask their parents and friends to use cloth bags instead of plastic ones. They think
it is their duty to protect the environment.
                                         Stop using free plastic bags
 Government's _______1_____Supermarkets and shops don't_______2_______ people with
free plastic bags from June 1st,2008 on.
People have to _____3______ for plastic bags.
Reasons for stopping the use of free     plastic bagsPlastic bags can_______4______ the environment and______5___
a lot of energy.
People throw the used plastic away_______6_____ and they are
______7______ to break up.
Our country wants to make litter______8_____ and_____9_____  the environment
Practical ideas for shoppingPeople_____10_____ cloth bags or baskets  instead of plastic
ones when shopping.
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题型：单项选择题 A1型题

民间有一种检测“地沟油”的方法——酱油混合分层法。如图所示，将酱油与油混合并搅拌，分层较慢、油质变混浊的是“地沟油”；分层清楚且速度快的是新鲜油。

根据检测原理和生活经验，在新鲜油、地沟油、酱油和水这几种液体中，密度最大的是（   ）

A．新鲜油

B．地沟油

C．酱油

D．水
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题型：单项选择题 A1型题

联网的计算机之间的通信必须遵守共同的网络协议，网络协议是为网络数据交换而制定的规则、约定和标准，它包括3个组成部分：语义、语法和______。
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题型：单项选择题 A1型题

达尔文在环球考察时，在南美洲的加拉帕戈斯群岛上观察13种地雀，它们的大小和喙形各不相同，栖息地和食性也不相同，其种间杂交一般是不育的。根据研究，它们是由一种祖先地雀进化来的。

这些鸟的祖先由于偶然的原因从南美洲大陆迁来，它们逐渐分布到各个岛上去，各个岛上的地雀被海洋隔开不能交配，这就造成了（），阻止了种群间的基因交流，但此时并没有形成新的物种.后来，产生了（），这便形成了不同品种的地雀。由此可见，（）是物种形成的必要条件。
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题型：单项选择题 A1型题

Alzheimer病与下述哪些疾病作鉴别（）

A.正常老年性改变

B.Pick病

C.多发梗死性痴呆

D.亚急性动脉硬化性脑病

E.橄榄脑桥小脑萎缩
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