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1. 
Studying nature has led human beings to some amazing scientific inventions.
A.
Yes
B.
No
C.
NG
2. 
A large number of inventions initially failed.
A.
Yes
B.
No
C.
NG
3. 
People using biomimicry in the past is hard to imagine.
A.
Yes
B.
No
C.
NG
4. 
When it comes to preventing harmful bacteria from sticking to it, the sharkskin material is very reliable.
A.
Yes
B.
No
C.
NG
5. 
The sharkskin material has had a clear effect on hospitals infection rates.
A.
Yes
B.
No
C.
NG
6. 
One of the most noteworthy inventions is a fabric that mimics a butterfly's shiny wings.
A.
Yes
B.
No
C.
NG
7. 
The architect came up with a practical plan for keeping buildings cool.
A.
Yes
B.
No
C.
NG
8. 
The gecko tape is not likely to be a feasible or money-making invention.
A.
Yes
B.
No
C.
NG
9. 
Many of the inventions are not expensive to produce.
A.
Yes
B.
No
C.
NG