公共英语考试

【单选题】 It can be inferred from the passage that ______.
A．the Apollo mission was very successful
B．protection from space radiation is not a easy job
C．astronauts will have deformed children or grandchildren
D．radiation is not a threat to well-protected space explorers

网考网参考答案：B
网考网解析：
[解析] A、C、D文中都没有评论，因此可确认B为正确答案。 查看试题解析出处>>