某女性18岁.患风心病二尖瓣狭窄4年.近半月游走性关节痛,气促,以下哪项最可能提示患

题型:单项选择题

问题:

某女性18岁.患风心病二尖瓣狭窄4年.近半月游走性关节痛,气促,以下哪项最可能提示患者发生了风湿性全心肌炎()。

A.心脏向双侧扩大

B.心尖区收缩期Ⅲ级杂音

C.心包摩擦音

D.急性肺水肿发作

E.心电图P-R间期延长

考点:北京住院医师神经内科Ⅰ阶段心脏内科心脏内科题库
题型:单项选择题

有关血栓的论述,正确的是

A.静脉血栓多于动脉血栓

B.下肢血栓多于上肢

C.动脉瘤内血栓多为混合血栓

D.静脉内血栓尾部多为红色血栓

E.毛细血管内血栓多为白色血栓

题型:单项选择题

一氧化氮是无色气体,密度比空气略大,难溶于水,在常温下易被空气中氧气氧化为红棕色的二氧化氮.现收集一瓶一氧化氮气体的方法是(  )

A.向上排空气法

B.向下排空气法

C.排水集气法

D.向下排空气法    或排水集气法

题型:单项选择题

引起呕血的病因不包括()

A.食管疾病

B.血液疾病

C.心脏疾病

D.急性传染病

E.肝胆疾病

题型:单项选择题

某工厂有一车间内具有悬浮状、堆积状可燃粉尘,虽不可能形成爆炸混合物,但在数量和配置上能引起火灾。因工程需要,在车间附近要建设一个车间变电所,车间内将安装有电动机、电热器等电气设备。

该车间属于()危险环境,应划分为()危险域区。

A.爆炸性粉尘,1区

B.火灾,22区

C.火灾,23区

D.爆炸性气体,0区

题型:单项选择题

People can get emotional about immigration. Bill O’Reilly, a talk-show host, devoted a recent segment to the story of an illegal alien who got drunk and accidentally killed two attractive white girls with his car. If only he had been deported for previous misdemeanours, Mr. O’Reilly raged, those girls would still be alive. Another talk-show host, Geraldo Rivera, during an on-air shout-joust(争吵) with Mr. O’ Reilly, denounced his demagogic choice of story-angle as" a sin".

President George Bush tried again this week to bring a more rational tone to the debate. He urged the new Democratic Congress to revive the immigration reforms that the old Republican Congress killed last year. His proposal was broadly the same as before. He said he wanted to make it harder to enter America illegally, but easier to do so legally, and to offer a path to citizenship for the estimated 12m illegals who have already snuck in.

The first part faces few political hurdles and is already well under way. Mr. Bush expects to have doubled the number of Border Patrol agents by the end of next year. The new recruits are being trained. And to defend against the invading legions of would-be gardeners and hotel cleaners, the frontier is also equipped with high-tech military gizmos(小发明), such as unmanned spy planes with infra-red(红外) cameras. This may be having some effect. Mr. Bush boasted that the number of people caught sneaking over the border had fallen by nearly 30% this year.

And the controversial part of Mr. Bush’s immigration package--allowing more immigrants in and offering those already in America a chance to become legal -- is still just a plan. House Republicans squashed it last year. Mr. Bush senses a second chance with the new Democratic Congress, but Democrats, like Republicans, are split on the issue. Some, notably Ted Kennedy, think America should embrace hard- working migrants. Others fret that hard-working migrants will undercut the wages of the native-born.

Mr. Bush would like to see the pro-immigrant wings of both parties work together to give him a bill he can sign. The Senate is expected to squeeze in a debate next month. The administration is trying to entice law-and-order Republicans on board; a recent leaked memo talked of substantial fines for illegals before they can become legal and" much bigger" fines for employers who hire them before they do.

The biggest hurdle, however, may be the Democrats’ reluctance to co-operate with Mr. Bush. Some figure that, rather than letting their hated adversary share the credit for fixing the immigration system, they should stall until a Democrat is in the White House and then take it all. So there is a selfish as well as a moral argument for making a deal.

The Democrats are hesitant to support Mr. Bush on this issue in that ()

A.the plan will be of no value to the Democrats

B. this issue involves political competition between parties

C. they want to wait for a democratic president to improve the plan

D. they think it is selfish for Mr. Bush to carry out the plan

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