2. 外语
  3. In most cases, you have to use the chemicals within ______.

In most cases, you have to use the chemicals within ______.

admin2010-02-17  62
问题 In most cases, you have to use the chemicals within ______.
选项 A、limits
B、borders
C、ranges
D、care
答案A
解析 单词limit：限度；限制。单词border：边界；国界；边境。单词range：范围；山脉；行列；射程。单词 care：小心；照料；忧虑。
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