全凭静脉麻醉(TIVA)
参考答案：
全凭静脉麻醉(TIVA)：完全采用静脉麻醉药及静脉麻醉辅助药的麻醉方法。
Why did they keep trying _________ they must have known it was hopeless?
A．if
B．because
C．when
D．whether
肺胀的辨证要点，偏虚者应辨别（）
A.痰浊、水饮、血瘀的偏盛
B.外感与内伤的类别
C.气滞、血瘀的偏盛
D.气、血、津液的亏虚
E.肺、心、肾、脾病变的主次
