(单选题)

Why it’s not easy to explore the dark side of the moon? ( )

A.The dark side is the farthest part from the Earth.

B.The moon will block any signals coming from Earth.

C.The dark side never faces Earth.

D.Have to launch a satellite that will hang out in the moon’s orbit.

参考答案：B

参考解析：

定位至第一段One problem with exploring the dark side of the moon is that there's no easy way to communicate with …The moon itself would block any signals coming from Earth.可知原因在于月球会屏蔽地球信号，沟通是大问题。选项B：月球会屏蔽地球的信号，表述正确。选项A和选项C谈及的距离问题并非原因；根据to address that, China launched a satellite earlier this year that will hang out in the moon's orbit可知选项D：已经发射了卫星，但是依然悬在月球轨道上，属于解决问题的方法，而不是问题本身。故本题正确答案选B。

知识点：细节题英语阅读理解通用英语