仅适用于采用标准图纸的工程的施工图预算审查方法是( )。
A.逐项审查法B.标准预算审查法C.分组计算审查法D.“筛选”审查法
参考答案:B
Attempts have been made for nearly three decades to increase the amount of precipitation from clouds by seeding them with salt or silver iodide.
A.Devices
B.Hypotheses
C.Efforts
D.Suggestions
二级预防针对疾病自然史的阶段是()
A.无危险阶段
B.出现危险因素的阶段
C.致病因素出现的阶段
D.症状出现的阶段
E.体征出现的阶段