18+18+18+18+18+18+18
=18×7
=78.
故答案为:18×7=78.
The old tower looks nice. It’s about ______
A.twelve-metre-high
B.twelve-metre high
C.twelve-metrees high
D.twelve metres high
肝破裂合并开放性气胸的治疗首先是()
A.输血
B.补液
C.处理气胸
D.应用抗生素
E.剖腹探查止血