[判断题]批复应有针对性地答复下级机关的请示和报告.
[单选题]Congtalatonl You won the lrst prze im today.s speech contest
[填空题]绝热材料除应具有 (较小 )的导热系数外,还应具有较小的(吸湿性)或( )
[填空题]综合指数是一种( ).
[填空题]由于宏观经济学研究的是总体经济,所以宏观经济分析模型的基础不再是对( )的分析
[多选题]关于同步电机的三种励磁状态,以下说法正确的是( ). (A)欠励磁状态,从电网输出滞后的无功电流 (B)过励磁状态,从电网输出滞后的无功电流 (C)欠励磁状态,从电网吸收滞后的无功电流 (D)过励磁状态,从电网吸收滞后的无功电流
[判断题]空气的粘度主要受温度变化的影响,温度增高,粘度变小.
[单选题]( )属于非地带性植被.A. 北方针叶林B. 沼泽植被C. 夏绿阔叶林D. 草原
[填空题]是我国实行新学制后供全国统一使用的第一部脱离蒙学读物性质的语文教材.
[填空题]已知某饱和粘土地基受大面积均布荷载作用,在双面排水条件下达到60%的固结度需要4年时间,则该土层在相同荷载作用时单面排水条件下达到相同的固结度需要( )年.
[单选题]在《荷塘月色》的教学中,不宜采用的朗读训练方式是A.教师范读 B.学生单读C.学生齐读D.学生默读
[判断题]短路瞬间任何闭合回路的磁链保持不变.
[判断题]煤粉燃烧锅炉热效率一般高于链条锅炉,故煤粉锅炉更适合做为小型锅炉.
[单选题]Musti take a taxr You- can take my car.
[单选题]岩石浸水后强度降低的性能称为岩石的( ) A.吸水性 B.透水性 C.软化性 D.抗冻性
[阅读理解]Dyslexia is a problem that restricts the ability to recognize words and connect sounds with letters when people read. People with this learning disorder may also have problems when they write. Dyslexia is not related to eyesight or intelligence. The problem involves areas of the brain that process language. Brain scientists are studying whether they can predict which young children may struggle with reading to provide them with early help. John Gabrieli at the Massachusetts Institute of Technology is leading the study of five-year-olds in about twenty schools in the Boston area.They studied in the schools with kindergartens. And for all the children joining in the study, they give them a brief set of paper-and-pencil tests to look at which children appear to be at some risk for struggling to read. So far, fifty of them have been examined in a scanner, a special machine, to show brain activity. Written tests are not always able to identify dyslexia or other problems, while brain scans may offer a more scientific way to identify problems. And with reading problems, early identification is important. When it comes to helping children overcome reading difficulties, the younger the child, the more effective they are.Reading problems are not usually identified until a child is in the third or fourth grade. The later children are recognized as poor readers, the less treatment can help. And, as Professor Gabrieli points out, poor reading can make education a struggle. Reading is everything. Even math and science have textbooks.While the children are given tasks related to reading, the brain scans measure the extent to which certain parts of the brain become active while the children do the work. The scientists say they are pleased with early results from the study, but have a long way to go.1.Dyslexia affects the part of brain concerning 2.Dyslexia problems are more likely to be identified through ________.________.3.According to the passage, which of the followings has the best time to overcome reading difficulties?4.What is the passage mainly about
[单选题]两个元件故障率分别为0.6次/年和0.8次/年,由这两个元件串联组成的系统的故障率为( )A. 0.48次/年 B. 0.7次/年 C. 0.8次/年 D.1.4次/年
[判断题]链转移剂能使聚合物的分子量降低.
[单选题]为增强建筑物的整体刚度,可采取 等措施 A.刚性基础 B.变形缝 C.预制板 D.圈梁
[判断题]串接在正弦交流电路中的功率表,测量的是交流电路的有功功率
[问答题]某国2010年--2015年不变价国内生产总值资料如下:年份201020112012201320142015国内生产总值1000018235.127993.739744.352749.968806.1国内生产总值逐期增长量(亿元)―8235.19758.611750.613005.616056.2求该国2010年--2015年期间不变价国内生产总值累计增加量和平均增长量