The producers of oil and other __________ commodities have an advantage.

未分类题设计任务：请阅读下面学生信息和语言素材，设计一个35分钟的语法教学活动。教案没有固定格式，但须包含下列要点：teaching objectivesteaching contentskey and difficult pointsmajor steps and time allocationactivities and justifications教学时间：35分钟学生概况：某城镇普通中学高中二年级学生，班级人数40人。多数学生已经达到《普通高中英语课程标准（实验）》六级水平。学生课堂参与积极性一般。语言素材：Living Life OverIf I had my life to live over ... I would have talked less and listened more.I would have invited friends over to dinner even if the carpet was strained and the sofa faded.I would have taken the time to listen to my grandfather ramble about his youth.I would never have insisted the car windows be rolled up on a summer day because my hair had just been teased and sprayed.I would have burned the pink candle sculpted like a rose before it melted in storage.I would have sat on the lawn with my children and not worried about grass stains.I would have cried and laughed less while watching television and more while watching life.I would have gone to bed when I was sick instead of pretending the earth would go into a holding patter if I were not there for the day.I would never have bought anything just because it was practical， would not show soil or was guaranteed to last a life time.There would have been more 'I love yous' ... more 'I‘m sorrys' ... but mostly， given another shots at life， I would seize every minute ... look at it and really see it ... live it ... and never give it back.

未分类题Which of the following is NOT the advantage of group work?

未分类题What items are mainly assessed in the following questions?How well did you work in your group tasks?

未分类题Teacher: After listening， answer the following two questions according to what you have heard on the tape.（1） What is the relationship between the speakers?（2） What are the speakers‘ attitudes towards each other?What strategy does this listening activity help to train?

未分类题How should the teacher deal with students‘ writing errors?

未分类题根据题目要求完成下列任务，用中文作答。下面是某英语教师在教授The Olympic Games一课后布置的作业：Now you have two tasks. One is to finish the listening part in workbook. The other is to find an interesting mythology about the Olympic Games and share with us tomorrow.根据作业内容回答以下问题：（1）该作业布置的合理吗?（2）布置作业应注意哪些事项?（3）常见的作业有哪些形式?请结合实例为本课设置新的作业形式（至少一种）。

未分类题In speaking activities， a speaker often tries to avoid using a difficult word or structure and chooses to use a simpler one. What learning strategy does the speaker use?

未分类题杜宾一瓦森检验法一般使用较多，它可以满足任何类型序列相关性检验。（ ）

未分类题某股票组合市值8亿元，β值为0．92。为对冲股票组合的系统性风险，基金经理决定在沪深300指数期货10月合约上建立相应的空头头寸，卖出价格为3263．8点。据此回答以下两题。该基金经理应该卖出股指期货（ ）手。 查看材料

未分类题当相关系数r=0时，表示两者之间没有关系。（ ）

未分类题某交易者以2．87港元／股的价格买入一张股票看跌期权，执行价格为65港元／股；该交易者又以1．56港元／股的价格买入一张该股票的看涨期权，执行价格为65港元／股。（合约单位为1000股，不考虑交易费用）据此回答以下两题。如果股票的市场价格为71．50港元／股时，该交易者从此策略中获得的损益为（ ）。 查看材料

未分类题得到回归方程后，应该马上投入应用，做分析和预测。（ ）

未分类题以黑龙江大豆种植成本为例，大豆种植每公顷投入总成本8000元，每公顷产量1.8吨，按照4600元 吨销售。据此回答下列两题。仅从成本角度考虑可以认为（ ）元／吨可能对国产大豆现货及期货价格是一个较强的成本支撑。 查看材料

未分类题假设未来甲方预期资产价值会下降，购买一个欧式看跌期权，行权价为95，期限1个月，期权的价格为3．8个指数点，这3．8的期权费是卖出资产得到。假设指数跌到90，则到期甲方资产总的市值是（ ）元。 查看材料

未分类题假设另外一部分费用的现值是22．6万美元，则买方在2月1日当日所交的费用应该是（ ）美元。 查看材料