下述骨肉瘤的影像学描述中,错误的是() A.原发性恶性骨肿瘤中发病率最高 B.发生在

题型:单项选择题

问题:

下述骨肉瘤的影像学描述中,错误的是()

A.原发性恶性骨肿瘤中发病率最高

B.发生在长管状骨干骺端

C.溶骨性骨破坏,无肿瘤性成骨性改变

D.葱皮样骨膜反应

E.肿瘤内骨化和钙化

考点:内科住院医师医学影像医学影像题库
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如图,电阻箱两接线柱间的电阻值是______Ω.

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患者,男性,52岁,因心慌、心前区不适前来就诊。王护士在巡视候诊患者时发现该患者面色苍白、呼吸困难,前去询问无应答,查脉搏50次/分,呼吸24次/分。对该患者应()。

A.协助医生做检查

B.做疫情报告

C.到隔离门诊就诊

D.按挂号顺序就诊

E.立即送抢救室抢救

题型:单项选择题

For many people today, reading is no longer relaxation. To keep up their work they must read letters, reports, trade publications, interoffice communications, not to mention newspapers and magazines: a never ending flood of words. In (1) a job or advancing in one, the ability to read and comprehend (2) can mean the difference between success and failure. Yet the unfortunate fact is that most of us are (3) readers. Most of us develop poor reading (4) at an early age, and never get over them. The main deficiency (5) in the actual stuff of language itself—words. Taken individually, words have (6) meaning until they are strung together into phrases, sentences and paragraphs. (7) , however, the untrained reader does not read groups of words. He laboriously reads one word at a time, often regressing to (8) words or passages. Regression, the tendency to look back over (9) you have just read, is a common bad habit in reading. Another habit which (10) down the speed of reading is vocalization—sounding each word either orally or mentally as (11) reads.
To overcome these bad habits, some reading clinics use a device called an (12) , which moves a bar(or curtain) down the page at a predetermined speed. The bar is set at a slightly faster rate (13) the reader finds comfortable, in order to "stretch" him. The accelerator forces the reader to read fast, (14) word by word reading, regression and subvocalization practically impossible. At first (15) is sacrificed for speed. But when you learn to read ideas and concepts, you will not only read faster, (16) your comprehension will improve. Many people have found (17) reading skill drastically improved after some training. (18) Charlie Au, a business manager, for instance. His reading rate was a reasonably good 172words a minute (19) the training; now it is an excellent 1,378 words a minute. He is delighted that how he can (20) a lot more reading material in a short period of time.

A.our
B.your
C.their
D.other

题型:单项选择题

MC在企业管理中意为()。

A.计划控制

B.物料控制

C.生产控制

题型:单项选择题

具有抗菌作用的产品在使用剂量下,对检验项目规定试验菌的杀灭率为()。

A.≤90%

B.≥99.9%

C.≥50%

D.≥90%

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