A-A+
A．Exposure to even tiny amounts of radiation i
问题详情
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.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：[听力原文]
What do we know about radiation in space?
由选项推测本题与辐射有关。文中关键句为“it is extremely difficult to be sure about radiation damage”，之后作者又举了例子，说明辐射给孕妇造成的影响直到畸形婴儿出生才能显现，说明这种影响是缓慢的，故正确答案为B)。其余说法均不严密。
