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单选题
用上部的锁机构安装中下显示组件。
A
Use the upper latch mechanism to lock the lower display unit in the middle.
B
The latch mechanism at the top is used to secure the center display unit on the bottom.
C
The center lower display unit is installed with the latch mechanism at the top.
答案解析
正确答案：C
相关知识点：
用上部锁机构装中下显组
