A-A+
We know from the passage that ______.A．exposur
问题详情
We know from the passage that ______.
A．exposure to even tiny amounts of radiation is fatal
B．the effect of exposure to radiation is slow in coming
C．radiation is avoidable in space exploration
D．astronauts in spacesuits needn" t worry about radiation damage
参考答案
正确答案：B
解析：根据文章第二段．．．a person may feel perfectly，but the cells of his or her sex organs may be damaged，and this will not be discovered until the birth of deformed children or even grandchildren．选项B“暴露在辐射线下的后果(this)要很长时间才会显现出来”符合原文的意思。选项A说“即便是微量的辐射也是致命的”，选项C说“在太空探险辐射
