The skin is the largest organ of your body ______of three layers; ______are esse

The skin is the largest organ of your body ______of three layers; ______are esse

题型:同步题难度:来源:
The skin is the largest organ of your body ______of three layers; ______are essential to ____your body  against diseases, poisons and the sun"s harmful rays or radiations.     [     ]

A. consisting; they; protecting                  
B. consisting; which; protecting     
C. made up of; they; protect                    
D. consisted; they; protecting

答案
A
举一反三
When the police broke into the room, they were terrified at the scene: a middle-aged man lying on the         floor, with a cupboard _______him, his feet and hands ______ tight with electric wires, his throat _____ open and a pair of scissors ______ deep in the chest.      [     ]
A. covered; tied; cut; cut                      
B. covering; tying; cutting; cutting  
C. covering; tied; cut; cutting                  
D. covered; were tied; cut; cutting
题型:同步题难度:| 查看答案
__     confidence and the necessary equipment, they failed to rescue the 42 miners trapped in the coal
mine.     [     ]
A. Lack of    
B. Lacking of    
C. Lacking    
D. Having lacked
题型:同步题难度:| 查看答案
______ his drunk driving, he was _______ from driving for two years.[    ]
A. Thanks to; stopped  
B. Due to; kept    
C. Owing to; banned  
D. Because of; forbidden
题型:同步题难度:| 查看答案
Don’t leave the water _______ while you brush your teeth.[     ]
A. run            
B. running            
C. being run        
D. to run
题型:同步题难度:| 查看答案
The lost boy was last seen _______ in the garden.[     ]
A. playing      
B. play                
C. to play          
D. played
题型:同步题难度:| 查看答案
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