In the atmosphere, carbon dioxide acts
rather like a one-mirror--the glass in the roof of a green-house which allows
the sun’ s rays to enter but prevents the heat from escaping. According to a weather expert’ s prediction, the atmosphere will be warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate. If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several meters and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere, possibly resulting in an alteration of the earth’ s chief food-growing zones. In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a m A. the greenhouse effect B. the solar effects on the earth C. the models of solar-weather interactions D. the causes affecting weather [单选题]3岁以内小儿进行直肠测温时,肛表插入的深度约为
A.1-2cm B.2-3cm C.4-5cm D.6-7cm E.8-9cm [单选题] 水土保持补偿费等四项政府非税收入划转至税务部门征收后, 有关征收范围、对象、标准、分成、使用等政策, 下列说法正确的是() 。
A. 由原执收部门根据现行情况制定新的规定 B. 由税务部门根据现行情况制定新的规定 C. 由财政部门根据现行情况制定新的规定 D. 继续按照现行规定执行 [填空题]社会公德涵盖的关系是( )
[单选题]尿胆红素试验,尿胆原试验均为阳性见于( )
A.正常人 B.饥饿 C.肝细胞性黄疸 D.溶血性黄疸 E.阻塞性黄疸 [单项选择]治疗脑血栓形成痰热腑实、风痰上扰证,应首选的方剂是()。
A. 天麻钩藤汤 B. 真方白丸子 C. 补阳还五汤 D. 镇肝熄风汤 E. 星蒌承气汤 [不定项选择题]局部空调机组的分类中,()仅用于夏季降温去湿,适用于民用与公用建筑的舒适性空调系统。
A.恒温恒湿空调机组 B.冷风机组 C.房间空调器 D.特殊用途的空调机组 [多项选择]矩阵组织结构的特点有______。
A. 设置有两种工作性质不同的部门 B. 可以避免不同部门指令的冲突 C. 横向部门与纵向部门相互无关 D. 适用于具有多个子项目的大型项目或项目群 E. 职能部门的管理弱化 我来回答: 提交
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