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There is an even chain hanging on a pulley. The chain is 5 meters long and weighs 4 kilograms. The chain lengths on the left and right sides of the pulley are a and b respectively. b=？

1: a = 1 m

2: r = 0.3 m
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBoth Statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
  • DEACH Statement ALONE is sufficient
  • EStatement (1) and (2) TOGETHER are NOT sufficient.
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正确答案: C

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