单选题 you should not think that experts are ______ right.
[A] steadily [B] invariably [C] continuously [D] constantly

【正确答案】 B
【答案解析】四个选择项中的词都有“不变；恒定”之意。但只有invariably具有always的意思，在这里搭配最适合。 steadily稳定地；continuously不间断地；constantly经常。句意：你不应该认为科学家们总是对的。