---Spacecraft “Discovery” has failed in the course of launch.　　----? They have been prepar

发布时间：2020-08-17 11:38:11

---Spacecraft “Discovery” has failed in the course of launch.
　　----    ? They have been preparing for the test.
A. How e
B. When
C. How
D. Why not

网友回答

(答案→)A. How e
B. When
C. How
D. Why not
解析：how e在这里的意思是“怎么回事？”，表示不解，惊讶。
以上问题属网友观点，不代表本站立场，仅供参考！