A-A+
After several ______.attempts to send the miss
问题详情
After several ______.attempts to send the missile into space, the spacecraft was finally launched successfully.
A．abortive
B．difficult
C．experimental
D．preliminary
参考答案
正确答案：A
解析：(abortive流产的，失败的)。句意为：把导弹发射到太空中去的几次尝试失败以后，宇宙飞船的发射终于取得成功。B．difficult困难的；C．experimental实验性的；D． preliminary预备的，初步的。
