确诊为输卵管妊娠破裂,出血性休克,应采取的紧急措施是()
A.升压药物
B.输血
C.立即剖腹探查
D.纠正休克后手术
E.边抗休克,边开腹手术
参考答案:E
The parents had to sell their car for money ______ they wanted to save their child's life. [ ]
A. if
B. whether
C. because
D. so
义务教育具有哪些性质和特征?