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2011-09-15 14:36:00   来源：liuxuepaper.Com    双击单词自动翻译

　　Which of the following, if true, best supports the claim that the company’s plan will be successful?

　　(A) Nematodes that have emerged from their cysts can be killed by ordinary pesticides.

　　(B) The only part of a potato plant that a nematode eats is the roots.

　　(C) Some bacteria commonly present in the roots of potatoes digest the chemicals that cause the nematodes to emerge from their cysts.

　　(D) Trials have shown that spreading even minute quantities of the chemicals on potato fields caused nine-tenths of the nematodes present to emerge from their cysts.(D)

　　(E) The chemicals that cause the nematodes to emerge from their cysts are not emitted all the time the potato plant is growing.