In Shenzhou VI, Chinese astronauts aren’t only spaceship drivers, () machine repairersand scientists.
In Shenzhou VI, Chinese astronauts aren’t only spaceship drivers, () machine repairersand scientists.
A、so
B、or
C、and
D、but
正确答案:D
解析:词汇与结构部分\大学英语A\词法A\连词A