对于科技研发项目和产品营销项目都有很好的适用性的合同类型是（）。
A．成本加酬金合同
B．总价合同
C．以时间为基础的合同
D．百分比合同
参考答案：A
清除气道分泌物的方法是门诊患者肺的康复的重要方面，可应用物理治疗方法。其目的之一是少应用（）
A.气管或鼻的吸出
B.拍打胸部与姿势引流
C.机械性吹入-排气
D.手法辅助咳嗽
E.腹带
During the last few years, it has been realized that maintenance of programs is more expensive than development, so reading of programs by humans is as important as (67) them.
A．editing
B．writed
C．written
D．writing
