【简答题】同义句转换 1. I think he is not so tall as his father. I think his father is _____ ____ him. 2. I like dolphins because they're cleverer than any other animal. I like dolphins because they're ___ ____ anim...
【单选题】Since he started working at the age of 20, he has not ______ turned to his father for money.
【单选题】His father ________ in the factory since he was twenty.
【判断题】容积调速回路与节流调速回路具有效率高、温升小的优点。
【单选题】有关药物经济学评价的表述,下列哪句话是不正确( )。
A.
医疗费用的急剧增长和药物消耗的高比例是药物经济学产生的关键因素
B.
药物经济学评价观点直接影响评价结果 C .药物经济学研究中最难计量的成本是间接成本 D. 药物经济学评价中好的成本效果不完全等同于成本节约
【判断题】容积节流调速回路的优点是具有低速稳定性好,而回路效率介于节流调速回路和容积调速回路之间,即回路效率较高的特点。
【判断题】进口节流调速回路的优点:回路有背压,节流损失引起的热量被带到油箱。
【单选题】有关药物经济学评价的表述, 下列哪句话是不正确
A.
医疗费用的急剧增长和药物消耗的高比倒是药物经济学产生的关键因素
D.
药物经济学评价中好的成本效果不完全等同于成本节约