Last Friday there was a basketball match between the _______ and the _________.

A．man teachers; boy students

B．men teachers, boy students

C．men teacher ,boys students

D．men teachers, boys students

患者，男，50岁。半天来呕血4次，量约 1200ml，黑便2次，量约600g，伴头晕心悸。查体：血压80/60mmHg(10.6/8 kPa)，心率118次/分，神志淡漠，巩膜轻度黄染，腹部膨隆，移动性浊音(+)。应首先采取的措施是

A．配血，等待输血

B．配血，快速输液，等待输血

C．紧急胃镜检查明确出血部位

D．诊断性腹腔穿刺，明确腹水性质

E．急查红细胞压积