离心式通风机的叶片可以分为三种:()、()、(),其中()损失最小,所以效率最高。
参考答案:前向叶片;后向叶片;径向叶片;后向叶片
被送达社会抚养费征收决定的当事人应当到县级财政部门指定的()缴纳社会抚养费。
A.收款人;
B.乡镇人民政府或街道办事处计生办;
C.金融机构
The client with a total laryngectomy receives tube feedings to meet his fluid and nutrition needs. The nurse explains to the client that the purpose of the tube feedings is to
A.prevent pain from swallowing.
B.prevent fistula development.
C.ensure adequate intake.
D.allow for adequate suture line healing.