对每米质量检测的说法中正确的有()A、应取三个试样的结果平均值 B、试样长度应大于1

题型:多项选择题

问题:

对每米质量检测的说法中正确的有()

A、应取三个试样的结果平均值

B、试样长度应大于1m

C、长度测量应精确到1mm

D、质量测量应精确到1g

考点:材料科学建筑钢材建筑钢材题库
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患者男,80岁。停止排气、排便3d,腹痛、腹胀并呕吐1d急诊入院。体格检查:意识模糊,精神差,眼球下陷,呼吸深,18次/min,心率65次/min,偶见室性期前收缩,血压80/65mmHg,腹轻胀,有轻压痛,反跳痛可疑,3h无尿。X线腹部平片示:右半结肠以上有较多气液平面。

患者较可能存在的水、电解质及酸碱平衡失调是()

A.等渗性脱水

B.高渗性脱水

C.低渗性脱水

D.低钾血症

E.高钾血症

F.代谢性酸中毒

G.代谢性碱中毒

H.高钠血症

I.细胞外液丢失为主

J.细胞内脱水为主

K.组织间液丢失为主

题型:多项选择题

双刃镗刀及多刃镗刀在孔的加工精度上同铰刀类似。

题型:多项选择题

Stress is our response to threatening or (1) events. We may experience different levels of stress depending on the (2) , meaning the events or circumstances that cause us to feel stress. Stressors can be classified into (3) main categories: (4) events, personal stressors, and (5) stressors. Cataclysmic events are major events that cause stress (6) , immediately, for a great many people at once. Personal stressors are major life events that create stress, including (7) life events. Background stressors are (8) hassles, or minor irritations, or (9) background stressors. Repeated exposure to stressors has both psychological and (10) consequences. The long- term consequence is that body tissues such as the heart and blood vessels can begin to (11) . The (12) system functions less effectively, and (13) our ability to fight off illnesses.
The General Adaptation (14) explains the sequence of physiological reactions to stress. There are three phases to G. A. S. The first is the " alarm and (15) " phase: we respond with alarm, and take (16) to remove the stressor. The second phase is the (17) stage: we fight against the stressor or try to cope with the stressor. This can lead to the third phase. (18) . The exhaustion phase may be an (19) way of trying to avoid the stressors. The body may be telling us that we need to do whatever is (20) to remove the stressor.

Stress is our response to threatening or (1) events. We may experience different levels of stress depending on the (2) , meaning the events or circumstances that cause us to feel stress. Stressors can be classified into (3) main categories: (4) events, personal stressors, and (5) stressors. Cataclysmic events are major events that cause stress (6) , immediately, for a great many people at once. Personal stressors are major life events that create stress, including (7) life events. Background stressors are (8) hassles, or minor irritations, or (9) background stressors. Repeated exposure to stressors has both psychological and (10) consequences. The long- term consequence is that body tissues such as the heart and blood vessels can begin to (11) . The (12) system functions less effectively, and (13) our ability to fight off illnesses.
The General Adaptation (14) explains the sequence of physiological reactions to stress. There are three phases to G. A. S. The first is the " alarm and (15) " phase: we respond with alarm, and take (16) to remove the stressor. The second phase is the (17) stage: we fight against the stressor or try to cope with the stressor. This can lead to the third phase. (18) . The exhaustion phase may be an (19) way of trying to avoid the stressors. The body may be telling us that we need to do whatever is (20) to remove the stressor.

题型:多项选择题

变压器耐压试验可起到以下()作用

A.及时发现变压器的局部弱点,予以弥补

B.可以消灭事故隐患

C.及时发现电气绝缘性能的好坏,以便采取相应的解决措施

题型:多项选择题

启用Cisco设备的访问控制列表,可以起到如下作用()。

A、过滤恶意和垃圾路由信息

B、控制网络的垃圾信息流

C、控制未授权的远程访问

D、防止DDoS攻击

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