环海公司为工业企业，该企业采用计划成本进行原材料的核算。2007年 1月初结存原材料

A client with recurred cancer is planned to take internal radiation treatment with a radium implant. The client tells the nurse that she is concerned about being radioactive and has been having nightmares about the treatment. What would be a reasonable explanation for the nurse to give to the client

A. "Careful shielding prevents the area above your waist from radioactivity. "
B. "These nightmares indicate that you’re in the denial phase of accepting the diagnosis. "
C. "The radioactive material is controlled and stays with the source; once the material is removed, no radioactivity will remain. "
D. "The radioactivity will gradually decrease, and you will be discharged when the radioactive material reaches its half-life. "

If he _____ my advice, he wouldn't have lost his job. [ ]

A. followed

B. should follow

C. had followed

D. would follow

下列有关黑体辐射的说法中，正确的是（　　）

A．温度越高，黑体辐射的强度越大

B．温度越高，黑体辐射的强度越小

C．黑体辐射的强度与温度无关

D．随着温度的升高，黑体辐射强度的极大值向波长较长的方向移动

在强油风冷却器中，潜油泵和风电动机的控制回路不必设有短路、过负荷、断相等保护

某人因感染沙门氏菌，患了急性肠炎，有轻微的发烧症状。请分析回答问题：

沙门氏菌在肠道内繁殖，其产生的毒素进入人体血液成为（），机体将会通过（）免疫解除其致病作用。