X线摄影中表示X线量的是() A.半价层 B.靶物质 C.kV D.mAs E.整流

题型:单项选择题

问题:

X线摄影中表示X线量的是()

A.半价层

B.靶物质

C.kV

D.mAs

E.整流波形

考点:放射医学(医学高级)放射医学综合复习题放射医学综合复习题题库
题型:单项选择题

影响工艺系统刚度的()因素之一有。

A、较主要

B、主要

C、较次要

D、次要

题型:单项选择题

下列各句中,没有语病一句是[ ]

A.我校举办的数学、物理两个短训班开设了农用数学、农业机电课程。

B.800个人,几千条胳膊,与洪水搏斗了一天一夜。

C.这将保证了粮食的大面积丰收。

D.对他的错误,不但不应该袒护,而且还应该提出批评。

题型:单项选择题

建造合同属于经济合同范畴,是一种特殊类型的经济合同,其主要特征表现在( )等。

A.建造合同一般是不可撤销合同

B.建造的资产体积大,造价高

C.针对性强

D.建设周期长,资产的建造一般需要跨越一个会计年度,有的长达数年

E.建造资产的有效性强

题型:单项选择题



As always, I am pleased to be here at the National Press Club for my (1) Speech. This is the seventh time I have had the (2) to give this speech, and over the years I have talked about a wide range of issues: (3) , reading, setting high expectations, improving the teaching profession, and (4) the American high school -- to name just a few.
I have just returned from a five-day, (5) tour of schools in rural America. We started in Monroe, Louisiana, and finished (6) later in Paducah, Kentucky. What I noticed most about the trip was the weather. Every time I (7) my Success Express School Bus, the local people who came to greet me (8) that the record for (9) had just been broken in their community. In each place, the temperature was always between (10) degrees.
Now, I have very good people on my staff. But the next time we plan a (11) , I’m going to have a (12) on my staff. I took this bus trip through rural America to make an important point that the (13) of children in our nation’s small towns cannot be ignored. Twenty-five percent of all our school children live in (14) all over America.
When it comes to our children, let’s always remember that children everywhere have (15) and (16) . Yet, schools in small towns too often have to (17) because of limited resources and a (18) . On my trip I put a p focus on the issues that matter in rural America, with a particular emphasis on (19) schools, reducing class size, and overcoming the (20) .

题型:单项选择题

看到室内墙角处的一轮旧纺线车,耳际似乎响起那彻夜不眠的嗡嗡声;目睹旧织布机,往事仿佛在那节奏感强烈的织布声中浮现脑海。家织土布属于古老的传统技术,男耕女织,天经地义。土布常被作为农村姑娘的嫁妆和她们心灵手巧的见证。农家妇女坐在织布机旁,把她们多姿多彩的生活与梦想编织在或清白如雪或繁花似锦的土布里。

这段文字表达的主要是()。

A.心灵的归本还原、还淳返朴

B.人间的真情珍藏在土布中

C.旧事民风,睹物生情

D.昔日的浮华如梭穿过

更多题库