氧气加压舱急排放应能使最高工作压到降至表压0．01MPa的时间不超过()
A．1分钟
B．1．5分钟
C．2分钟
D．2．5分钟
E．3分钟
参考答案：A
He asked ______the work was done as it had been planned ______.
A．whether; yesterday
B．whether; the day before
C．that; yesterday
D．that; the day before
急性脓胸的治疗原则。
