【简答题】在液压系统中,用来控制液体工作压力的发和利用()控制其他元件产生动作的阀,统称为压力控制阀。
【简答题】P___________, as a verb, means to succeed in passing through a physical object, entering an organization, selling products in a market, or understanding sth. difficult.
【单选题】对临终病人护理措施正确的是
A.
对临终病人护理措施正确的是 A.尽量满足病人意愿
【简答题】P____________, as a verb, refers to maintain sth. in its original or exsiting state or take action to save it or protect if from damage or decay.
【简答题】P________, as a verb, means to be normal or very common in a particular place or time; or refers to proposals, or opinions to be accepted or gain influence, often after a struggle or argument.