2. 外语
  3. _____ is often the case, the calls from our customers are for help with their computer systems.

_____ is often the case, the calls from our customers are for help with their computer systems.

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问题 _____ is often the case, the calls from our customers are for help with their computer systems.
选项 A、That
B、This
C、What
D、As
答案D
解析
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大学英语三级

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