问题
选择题
China’s first manned spaceship “Shenzhou Ⅴ” was sent up into space on October 15 and returned safely to the earth on October 16,______ is a great honour for our great motherland.
A．that
B．which
C．what
D．it
答案
答案：B
此题考查关系代词的用法。which引导非限制性定语从句，which在定语从句中作主语，指代前面整个主句。