2. 职称英语
  3. A、It has been proved that backpacks can cause back pain.B、It is yet to be prove

A、It has been proved that backpacks can cause back pain.B、It is yet to be prove

游客2024-01-21  47
问题
选项 A、It has been proved that backpacks can cause back pain.
B、It is yet to be proved that shoulder bags can damage the spine.
C、It might cause harm to kids’ back when choosing a shoulder bag.
D、It has been proved that a shoulder bag can damage kids’ spine.
答案 C
解析
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