白缢死
参考答案：前位缢死时颈部绳套受力较大，颈部动、静脉血管完全压闭，则面色苍白。
提高船舶稳性的措施有（）。
A．增加船宽；减小受风面积
B．加大型深；液舱内设置纵向水密舱壁
C．降低重心高度；防止重物移动
D．A+B+C
Three-fourths of the buildings _____ in the earthquake. [ ]
A. was destroyed
B. is destroyed
C. were destroyed
D. have destroyed
