The skin, an ____ part of your body and its largest organ, ____ as a barrier aga

The skin, an ____ part of your body and its largest organ, ____ as a barrier aga

题型:同步题难度:来源:
The skin, an ____ part of your body and its largest organ, ____ as a barrier against diseases.[     ]
A. vital, acting  
B. vital, acts    
C. essential, acting  
D. essential, acts
答案
D
举一反三
When we plan our vacation,mother often offers________suggestions.[     ]
A. careful  
B. practical
C. effective  
D. acceptable
题型:同步题难度:| 查看答案
This naughty boy is really________, which makes his mother upset.[     ]
A. attractive  
B. active
C. troublesome  
D. anxious
题型:同步题难度:| 查看答案
—How did you like the lecture tonight?
—Very________.I doubt if I will come to this kind of lecture next time.[     ]
A. encouraging
B. encouraged
C. disappointing  
D. disappointed
题型:同步题难度:| 查看答案
If you have to catch the first bus every day,choose this hotel.It is very________for the station-it"s only a
two-minute walk.[     ]
A. close  
B. certain
C. convenient  
D. distant
题型:同步题难度:| 查看答案
Facing starvation as a result of drought, they had no ________ but to eat the roots of the trees. [      ]
A. concern  
B. command
C. shortcoming  
D. alternative
题型:模拟题难度:| 查看答案
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