2. 外语
  3. The cells(电池)were designed to ______ sunshine to electricity to run a motor.

The cells(电池)were designed to ______ sunshine to electricity to run a motor.

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问题 The cells(电池)were designed to ______ sunshine to electricity to run a motor.
选项 A、convert
B、alter
C、modify
D、exchange
答案A
解析 convert(into／to)v.(使)转变为，(使)转化为。
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