2. 外语
  3. The adjustment by retarding growth and arresting vital functions during winter may result in the leaf fall of middle latitude de

The adjustment by retarding growth and arresting vital functions during winter may result in the leaf fall of middle latitude de

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问题 The adjustment by retarding growth and arresting vital functions during winter may result in the leaf fall of middle latitude deciduous trees.
选项 A、perennial
B、sophisticated
C、temporary
D、determined
答案C
解析 四个选项的意思分别是：perennial四季不断的，终年的；sophisticated久经世故的；temporary暂时的，临时的；determined坚定的，坚决的。句意是，在冬天，通过延缓生长和抑制主要功能这种调整可使位于中纬度的每年落叶的树落叶。所以正确答案是C选项，如：They just reached a temporary agreement．(他们只是达成一个临时协议。)
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