Which one is correct?
Select one:
a. All of them
b. Trademark help customers know who made the product
c. Do not use common name in trademark
d. Using material name as a trademark can be misleading
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Which choice can be used as a trademark for a dairy-based beverage?
Select one:
a. MILK
b. Butter
c. Delicious
d. None of them
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What is the problem on putting a sail on the sledge as in a sailboat?
Select one:
a. When go downhill
b. When go uphill
c. When the wind stop blowing
d. All are correct
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What is the principle of using fan on the sledge?
Select one:
a. The air will be compressed inside the engine before blowing out
b. All are correct
c. The fan can suck the air in and the sledge will move forward
d. The same as the jet engine principle
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What can be a trademark?
Select one:
a. Product shape
b. Numbers
c. All are correct
d. Sound