Xiamen Xiang'an Tunnel, is the first undersea tunnel built in mainland China, opened to t

发布时间：2020-08-16 13:30:39

Xiamen Xiang'an Tunnel,      is the first undersea tunnel built in mainland China, opened to traffic on April 26th．
A. that
B. what
C. where
D. which

网友回答

A. that
B. what
C. where
(答案→)D. which
解析：可联系答.案.网客服索取。
以上问题属网友观点，不代表本站立场，仅供参考！