X线呈矢状方向从患者的后方垂直射入胶片时的体位是() A.侧位 B.前后位 C.后前

题型:单项选择题

问题:

X线呈矢状方向从患者的后方垂直射入胶片时的体位是()

A.侧位

B.前后位

C.后前位

D.颌顶位

E.顶颌位

考点:儿外科住院医师放射科放射科题库
题型:单项选择题

下列关于“生物圈2号”实验的叙述错误的是[ ]

A.建立“生物圈2号”的目的是制造一个人工模拟的生命支持系统

B.“生物圈2号”中设置了生产者、消费者、分解者三大功能类群

C.“生物圈2号”完全模拟地球条件

D.“生物圈2号”实验的失败,使人们认识到与自然和谐共处的重要性

题型:单项选择题

美国把许多电子工业装配企业迁到东南亚和墨西哥等地,主要是为了

①充分利用当地廉价的劳动力资源

②充分利用当地便宜的土地和住房

③扩大市场,增加销售

④传播新技术、工艺

A.①②

B.①③

C.①④

D.②④

题型:单项选择题

’Poor little Faith!’ thought he, for his heart smote him. ’What a wretch am I, to leave her on such an errand! She talks of dreams, too. Methought, as she spoke, there was trouble in her face, as if a dream had warned her what work is to be done tonight. But, no, no!’t would kill her to think it. Well; she’s a blessed angel on earth; and after this one night, I’ll cling to her skirts and follow her to Heaven. ’
Questions:

A. Identify the author and the title of the work.
B. Who is Faith
C. How do you interpret the speaker’s feeling

题型:单项选择题

按结构如何进行阀门分类?

题型:单项选择题

一般来说,有害气体的着陆点距烟囱的距离是有效排出高度的()。

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