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白云石的主要成份是MgCO()

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人感染H5N1禽流感病例的病死率要高于人感染H7N9禽流感病例()

Which of the following sentences is the most proper?______

A. The poor old fellow died lonely last night.
B. The poor old fellow perished lonely last night.
C. The poor old fellow kicked the bucket lonely last night.
D. The poor old fellow departed lonely last night.

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