But how do they control the blinking？ In a study published in the journal Science, researchers trace the answer to the nerve cells leading to the firefly's lantern and the presence of an enzyme that makes the gas nitric oxide.
How do the fireflies control the blinking？
A. By their nerve cells.
B. They blink automatically.
C. By seeing the mates.
D. By the gas nitric oxide.
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"Press time" in paragraph 4 means______.
A. the moment when a magazine or other publication goes to press
B. the situation requiring quick or immediate action or attention
C. emergency
D. time that applies pressure to the islands and Cuba
Some American writers prefer to live in Ireland because of the following reasons EXCEPT that
A. they don't have to pay income tax in Ireland
B. they can get away from an increasingly violent America
C. the Irish leave them to get on with their own business
D. they can experience the real expatriate writer ethos that Ernest Hemingway had
It can be inferred that the policy Clinton Administration pursued went by the name of
A. peace through strength
B. strength through peace
C. unapologetic unilateralism
D. apologetic unilateralism
The Federal Government is the central government of the United States. It is divided into
A. Judicial
B. Justified
C. Law
D. Judicious
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