单项选择题

A．They need very little energy.
B．They’re found at all depths of the ocean.
C．They live where there is no sunlight.
D．They’re similar to many other kinds of microorganisms.
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单项选择题
A．They are difficult to read.B．They are slowly falling apart.C．They were not made from wood pulp.D．They should be stored in a cold place.
A．They are difficult to read.
B．They are slowly falling apart.
C．They were not made from wood pulp.
D．They should be stored in a cold place.
单项选择题
A．It is not religious any more.B．The holiday becomes such big business.C．People forget it was created to honor the birth of Christ.D．People go to parties, buy fine gifts and decorate the room.
A．It is not religious any more.
B．The holiday becomes such big business.
C．People forget it was created to honor the birth of Christ.
D．People go to parties, buy fine gifts and decorate the room.
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