Many strange new means of transport have been developed in our century, the strangest of _______ being perhaps the hovercraft(气垫船). A:which
B:them
C:that
D:it

大学本科考试 大学专科考试 自考专本科 成考考试 网教考试 考研考博 外语考试 英语类别 继续教育类 大学考试 学历类