The concept of obtaining fresh water from icebergs that are towed to populated regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being considered quite seriously by many nations, especially since scientists have warned that the human race will outgrow its fresh water supply faster than it runs out of food.
Glaciers are a possible source of fresh water that have been overlooked until recently. Three quarters of the Earth’s fresh water supply is still tied up in glacial ice, a reservoir of untapped fresh water so immense that it could sustain all the rivers of the world for 1, 000 years. Floating on the oceans every year are 7, 659 trillion metric tons of ice encased in 10, 000 icebergs that break away from the polar ice caps, more than ninety percent of them from Antarctica.
Huge glaciers that stretch over the shallow continental shelf give birth to icebergs throughout the year. Icebergs are not like se
A. an iceberg that is towed
B. obtaining fresh water from icebergs
C. the population of arid areas
D. real life
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若检查结果显示为胃窦部溃疡性癌，癌肿直径约2cm，术中见肿瘤未侵及浆膜，宜选择的治疗是（）| Why work {{U}} (62) {{/U}} you
have periodically asked yourself the same question, perhaps focused on
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basic {{U}} (65) {{/U}} for work in all societies. But self-interest can
{{U}} (66) {{/U}} more than providing for subsistence
or {{U}} (67) {{/U}} wealth. For instance, among the Maori, a
Polynesian people of the South Pacific, a desire for approval, a sense of duty,
a wish to {{U}} (68) {{/U}} to custom and tradition, a feeling of
emulation(竞争), and a pleasure in craftsmanship are {{U}} (69) {{/U}}
reasons for working. Even within the United States, we cannot understand work as
simply a response to {{U}} (70) {{/U}} necessity. Studies show that ’the
vast {{U}} (71) {{/U}} of Americans would continu A. conform B. confirm C. confine D. confide [单选题]消防救援队伍以（）为核心
A.A、正规化 B.B、业务素质 C.C、体能 D.D、提高能力素质 [单项选择]131I治疗后早发甲减一般指用药后多久发生（）。
A. 1年内 B. 2年内 C. 半年内 D. 1月内 E. 3月内 [判断题]深孔爆破的炮孔形式一般分为垂直孔、倾斜孔和水平孔三种。( )
A.正确 B.错误 [判断题]，原兑换水单
的兑回有效期为自兑换日起24 个月
A.正确 B.错误 [判断题]电流互感器一次绕组与电源并联接入，电压互感器一次绕组与电源串联接入。
A.正确 B.错误 [单项选择]病历摘要：熟练掌握药品分析检验的基本原理、方法、特点、注意事项和应用苯巴比妥片的含量均匀度测定可使用紫外分光光度法，是因为（）
A. 母核丙二酰脲有苯环取代 B. 母核丙二酰脲有脂肪烃取代 C. 母核丙二酰脲在碱液中烯醇化形成共轭系统 D. 母核丙二酰脲有二个N原子 [判断题]【判断题】【技能鉴定2008技师】2272一牵四放线是指以一根牵引绳同时牵放四根子导线。
A.正确 B.错误 [单选题]无人机飞行时，我们应当站在什么位置比较合适()
A.跟随飞行器行动，站着飞行器下方 B.为了避免阳光直射，坐在有空调的车中 C.站在空旷且与飞行器之间无建筑遮挡的位置 D.站在建筑物附近阴凉处 [多选题]当代中国，爱国主义的本质就是坚持（ ）、（ ）。
A.爱国和爱党 B.胸怀忧国忧民之心 C.爱社会主义高度统一 D.爱国爱民之情 [简答题]论述麦克马洪线的历史形成以及对当今中印边境的影响
[判断题] 181.} 在温度和压力较高时安装压力表,可选用退火紫
铜或铝垫片。 A.正确 B.错误 [单选题] 接入中性点绝缘系统的35kV以下高压线路计量装置，宜采用(____)。
A. 三台电压互感器，且按Y0/y0方式接线 B. 两台电压互感器，且按V/v方式接线 C. 三台电压互感器，且按Y/y方式接线 D. 两台电压互感器，接线方式不定 [单选题]在钢筋混凝土梁中，箍筋的主要作用是()。
A.承受由于弯矩作用而产生的拉力 B.承受由于弯矩作用而产生的压力 C.承受剪力 D.承受因混凝土收缩和温度变化产生的应力 我来回答: 提交
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