2. 外语
  3. Those factories use (both) chemical (or) mechanical (methods) (to manufacture) clear glue.

Those factories use (both) chemical (or) mechanical (methods) (to manufacture) clear glue.

admin2008-11-13  26
问题 Those factories use (both) chemical (or) mechanical (methods) (to manufacture) clear glue.
选项 A、both
B、or
C、methods
D、to manufacture
答案B
解析 应改为and。both…and结构意为“…和…”。
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