入苙 rù lì
参考答案:
苙,猪栏。后以“入苙”喻陷入圈套、牢笼。
_____you eat the correct foods _____be able to keep fit and stay healthy. [ ]
A. Only if ; will you
B. Only if ; you will
C. Unless ; will you
D. Unless ; you will
属于放射防护标准的剂量限值的是()
A.基本限值
B.导出限值
C.管理限值
D.参考水平
E.以上都是