可使氧离曲线右移的因素是血液的
A．CO2分压升高B．H+浓度降低C．pH升高D．温度降低E．O2分压升高
参考答案：A
为明确吐血的病因，应做下列哪项检查
A．内窥镜
B．血气分析
C．上消化道钡餐造影
D．B超
E．胃液分析
Your house is always so neat-how do you ________ it with three children?[ ]
A. manage
B. serve
C. adapt
D. construct
