The shock wave which followed the dazzling light
A.has remained a puzzle
B.lacks sufficient evidence
C.is a university professor
D.was generated by the explosion
E.will kill many animals
F.are attacked by aliens
正确答案是D
The shock wave which followed the dazzling light
A.has remained a puzzle
B.lacks sufficient evidence
C.is a university professor
D.was generated by the explosion
E.will kill many animals
F.are attacked by aliens
正确答案是D