(2013·安徽蚌埠第一次质检)Finding information in today's world is easy. The ________ is how you can tell if the information you get is useful or not.
#11344
A
knowledge
B
ability
C
competition
D
challenge
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While I was in the foreign country, my younger brother always ____ me of what was happening in big cities in time.
#10855
A
approved
B
accused
C
informed
D
warned
Zhao Benshan, whose overwork ______ his health failure, didn’t perform in the 2012 Spring Festival Gala on CCTV.
#12286
A
submitted to
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admitted to
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contributed to
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subscribed to
Mom believes that those words put to paper two centuries ago really _____ something.
#12780
A
mean
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represent
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tell
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say
Carbon dioxide, which makes a ______ between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.
#13856
A
difference
B
comparison
C
connection
D
barrier