女性,58岁。久站时左腹股沟区胀痛1年余,平卧时无不适。有慢性咳嗽病史。查体:体态肥胖,腹部无压痛,站立时左腹股沟下内侧突起半球形包块,咳嗽时无明显冲击感。
手术后第四天,诉切口疼痛。体温升至39℃。切口明显红肿。有波动。予以切开引流,与预后有关的问题是( ) 下列各项中,不属于唐代诗歌繁荣原因的是()
①唐朝社会环境开放与繁荣②资本主义萌芽的出现
③科举考试的内容以诗赋为主④市民阶层的扩大
公共建筑不应小于6 00rr12
公共建筑不应小于8.00m2
{{B}}Plant Gas{{/B}} Scientists have been studying natural sources of methane for decades but hadn’t regarded plants as a producer, notes Frank Keppler, a geochemist at the Max Planck Institute for Nuclear Physics in Heidelberg, Germany. Now Keppler and his colleagues find that plants, from grasses to trees, may also be sources of the greenhouse gas. This is really surprising, because most scientists assumed that methane production requires an oxygen-free environment. Previously, researchers had thought that it was impossible for plants to make significant mounts of the gas. They had assumed that microbes need to be in environments without oxygen to produce methane. Methane is a greenhouse gas, like carbon dioxide. Gases such as methane and carbon dioxide trap heat in Earth’s A. a oxygen-free environment. B. an environment with the same concentration of oxygen as the Earth has. C. a carbon dioxide-free environment. D. an environment filled with the greenhouse gas. [单项选择]面向管理的信息系统建设极其复杂和艰巨,主要原因是
A. 具有复杂的计算机及网络设备 B. 具有复杂的数据库,且数据量大 C. 具有社会性的一面,是人/机系统 D. 开发人员难于跟上技术更新 [单选题]为增大光接收机的接收动态范围,应采用()电路
A.ATC B.AGC C.APC D.ADC [单选题]水位变化区域的外部混凝土、建筑物的溢流面和经常遭受水流冲刷的混凝土,应避免采用( )。
A.硅酸盐水泥 B.普通硅酸盐水泥 C.硅酸盐大坝水泥 D.火山灰质硅酸盐水泥 [单选题]低钾血症时静脉补钾的浓度不宜超过:( )
A.20 mmol/L B.30 mmol/L C.40 mmol/L D.50 mmol/L [判断题]吊具屋面固定不移动,所以表面可以不进行防腐处理。
A.正确 B.错误 [判断题]红外热像仪都具有图像冻结功能、图像存储功能和图像降噪功能。( )
A.正确 B.错误 [单选题] 控制盘和低压配电盘、配电箱、电源干线上的工作应填用( )工作票。
A. 第一种 B. 第二种 C. 带电作业 D. 电力电缆第二种 [判断题]连挂作业,连挂后必须先试拉才能连接风管,并打开所有折角塞门。
A.正确 B.错误 我来回答: 提交
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