有关进行放射性核素通气功能显像患者的准备正确的是()
A.患者取仰卧位
B.采集前位图像
C.分别采集左肺野和右肺野
D.帮助患者学会正确呼吸
E.探头不用靠患者太近
参考答案:D
《中 * * 、国务院关于加快水利改革发展的决定》提出,水利改革发展应抓紧解决()缺水问题。
A.季节性
B.工程性
C.源头性
D.资源性
—Tom hasn't paid for the things he bought, has he?
— . His father will.pay for him. [ ]
A. Yes, he has
B. Yes, he did
C. No, he hasn't
D. No, he didn't