
【名词&注释】
葡萄酒(wine)、水解反应(hydrolysis)、加成反应(addition reaction)、合蕊柱(gynostemium)、头状花序(head)
                            
                                                                                         
                                                                    
                                                                     [单选题]没喝完的葡萄酒忘记盖上瓶盖,数天后会变酸。这是由于发生了 ( )
                                                                                                
                                  A. 水解反应 
  B. 氧化反应 
  C. 酯化反应 
  D. 加成反应 
 
                                    
                                        查看答案&解析
                                        
                                                                    
                                                                    举一反三:
                                                                    
                                                                         
                                    
                                     [单选题]萝摩科植物花较特化,具多种特殊构造,但并无( )。
                                                                                                            
                                            A. 副萼 
  B. 载粉器 
  C. 花粉块 
  D. 合蕊柱 
 
                                                                    
                                    
                                     [单选题]听第8段材料,回答第10至12题。第10题:How long has the man been in London?
                                                                                                            
                                            A. One year. 
  B. A few years. 
  C. A couple of months. 
 
                                                                    
                                    
                                     [单选题]___ they decide which college to go to, students should research the admission procedures.
                                                                                                            
                                            A. As 
  B. While 
  C. Until 
  D. Once 
 
                                                                    
                                    
                                     [单选题]I agree to his suggestion the condition that he drops all charges.
                                                                                                            
                                            A. by 
  B. in 
  C. on  
  D. to 
 
                                                                    
                                    
                                     [单选题]属有限花序中的简单花序。
                                                                                                            
                                            A. 穗状花序 
  B. 多歧聚伞花序 
  C. 头状花序(head) 
  D. 圆锥花序 
 
                                                                    
                                    
                                     [单选题]48 
                                                                                                            
                                            A. much 
  B. still  
  C. hardly 
  D. quite 
 
                                                                    
                                    
                                     [单选题]不整齐花是原始的,整齐花是进化的。( )
                                                                                                            
                                            A. 正确 
  B. 错误 
 
                                                            
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