Energy will be one of the defining issues of this century. One thing is clear: the era of easy oil is over. What we all do next will (1) how well we meet the energy needs of the entire world in this century and (2) .
Demand is (3) like never before. As populations grow and economies take (4) millions in the developing world are enjoying the (5) of a lifestyle that requires increasing amounts of energy. (6) , some say that in 20 years the world will (7) 40% more oil and gas fields are maturing. And new energy (8) are mainly occurring in places where resources are difficult to (9) , physically, economically and even politically. When growing demand meets tighter supplies, the result is more (10) for the same resources.
We can wait (11) a crisis forces us to do something. Or we can (12) to working together, and start by asking the tough questions: How do we meet the energy needs of th
A. In fact
B. To sum up
C. Generally
D. By the way
| Shopping habits in the United States
have changed greatly in the last quarter of the 20th century. Early in the 1900s
most American towns and cities had a Main Street. Main Street was always in the
heart of a town. This street was (31) on both sides with many
various businesses. Here, shoppers walked into stores to look at all sorts of
merchandise: clothing, furniture, hardware, groceries. (32) ,
some shops offered (33) . These shops included drugstores,
restaurants, shoe-repair stores, and barber or hairdressing shops. (34)
in the 1950s, a change began to (35) . Too many
automobiles had crowded into Main Street (36) too few parking
places were available to shoppers. Because the streets were crowded, merchants
began to look with interest at the open spaces (37) the city
limits. Open space is what the A. By B. During C. In D. Towards [单选题]腹泻病患儿有低钾血症时其心电图主要表现是
A. S-T段降低，T波平坦或倒置，出现U波 B. T波高尖，呈账蓬状 C. Q-T间期延长 D. P-R间期缩短 E. S-T段上升 [单选题]管道内部工作需要使用动力电源时，应使用带( )的电气工具；操作人员须戴绝缘手套，必要时应站在绝缘台上。
A.绝缘外壳 B.漏电报警装置 C.接地线 D.漏电保护器 [单项选择]2岁小儿实验室检查Hb为75g/L，可认为该小儿贫血程度是
A. 不贫血 B. 轻度贫血 C. 中度贫血 D. 重度贫血 E. 极重度贫血 [单选题]单心室最常见合并的心脏畸形是（ ）
A.大动脉转位 B.主动脉缩窄 C.房间隔混合型缺损 D.单心房 E.肺动脉瓣重度狭窄 [判断题]法律的效力高于法规和规章。
[单项选择]患者经行感受外邪而见往来寒热，胸胁苦满，咽干，目眩，心烦喜呕，舌苔薄白，脉弦。治宜选用
A. 逍遥散 B. 蒿芩清胆汤 C. 大柴胡汤 D. 小柴胡汤 [多项选择]当______时，证券公司及其营业部可以协助期货公司向客户提示风险。
A. 期货市场行情发生重大变化 B. 现货市场行情发生重大变化 C. 客户可能出现风险 D. 市场系统性风险 我来回答: 提交
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