Geniuses amaze us, impress us and make us all a little jealous.How do they differ from the average person? Scientists are working hard to figure out that answer.Tune in to the National Geographic     
                        
                     
                                
                                           
                        
                        
                             成为春秋时期第一个霸主是(      ) A.齐桓公 B.晋文公 C.楚庄王 D.赵王    
                        
                     
                                
                                           
                        
                        
                            —Who _________ the souvenir?  —Maria did. A.is going to buy          B.bought       C.buys       D.wants to bay    
                        
                     
                                
                                           
                        
                        
                            下列各句中有错别字的一项是(     )     A、在云雾迷漫的山冈,生长着的不只是树干里一圈一圈的年轮。云雾和霞光中的往事,与青春有关,有    
                        
                     
                                
                                           
                        
                        
                            西昌(约102°E,28°N)、酒泉(约99°E,40°N)、太原(约112°E、38°N)是我国的三大卫星发射基地。北京时间2007年10月24日18点05分,“嫦娥一号”卫星在    
                        
                     
                                
                                           
                        
                        
                            What would you do if you were too  shy? Here are some tips which can help you to get over shyness. ★Get into the habit of smiling  — it’s to your own advantage. When you smile at people, some wi    
                        
                     
                                
                                           
                        
                        
                            如图是现在家庭中常用的电热水壶,它具有加热快、效率高等特点,右表是其铭牌。(1)  当水壶中盛有12cm高的水,壶底所受水的压强为多少?(g取1    
                        
                     
                                
                                           
                        
                        
                            2014年是《中苏友好同盟互助条约》签订64周年和上海合作组织成立13    周年。综观60多年中俄(苏)关系的风雨历程,我们深切体会到    A.不结盟政