下述石棉肺影像表现,错误的是()A.早期,不规则形大阴影 B.晚期,双肺蜂窝状阴影

题型:单项选择题

问题:

下述石棉肺影像表现,错误的是()

A.早期,不规则形大阴影

B.晚期,双肺蜂窝状阴影

C.胸膜斑可钙化

D.蓬发心

E.胸膜改变常比肺改变更明显

考点:医学影像技术(医学高级)X线X线题库
题型:单项选择题

Passage Three

More than 6,000 children were expelled (开除) from US school last year for bringing guns and bombs to school, the US Department of Education said on May 8.
The department gave a report to the expulsions (开除) as saying handguns accounted for 58% of the 6,093 expulsions in 1996—1997, against 7% for rifles (步枪) or shotguns and 35% for other types of firearms.
"The report is a clear sign that our nation’s public schools are cracking down (严惩) on students who bring guns to school," Education Secretary Richard Riley said in a statement.
In March 1997, an 11-year old boy and a 13-year old boy using handguns and rifles shot dead four children and a teacher at a school in Arkansas. In October, two were killed and seven wounded in a shooting at a Mississippi school. Two months later, a 14-year old boy killed three high school students and wounded five in Kentucky.
Most of the expulsions, 56%, were from high school, 34% were from junior high schools and 9% were from elementary schools, the report said.

The report from the US Department of Education shows that______.

A.the number of the expulsions is not large.

B.the number of the expulsion is wrong.

C.there are soldiers hiding among the students.

D.guns are out of control in the US schools.

题型:单项选择题

火的使用在人类进化的过程中发挥了重要作用,最早知道人工取火的是(    )

A.元谋人

B.北京人

C.山顶洞人

D.半坡人

题型:单项选择题

气管导管气囊内应充多少容量气体为宜()。

A.3~4ml

B.5~6ml

C.7~8ml

D.9~12ml

E.充气至吸气和呼气时刚好不漏气为准

题型:单项选择题

_______ our surprise, the twin sisters went to Peking University at the same time last year. [ ]

A. With

B. In

C. To

题型:单项选择题

新柴油机初期运行()h后,应更换全部机油并清洗油底壳和机油滤清器。

A、10

B、50

C、100

D、200

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