A-A+
Why are scientists unsure which types of gases
问题详情
Why are scientists unsure which types of gases come from Phobos？
A．No one has been able to see the gas.
B．Their machine broke too soon.
C．The planet"s atmosphere is very thick.
D．There was not any interest in Mars.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：推理题 第三段提到，俄罗斯曾经发射过探测器探测气体，但是在尚未探明气体成分前探测器就停止了运行。因此，科学家们只是猜测那种气体的成分是水蒸气，但并不确定。所以，选项中最恰当的答案是B项，其他的选项在原文中都没有提到。
