Question

( )they are not very delicious,but they are good for health

A:maybe B:although C:because

Answer 1

为你解答。
( A. Maybe ) they are not very delicious, but they are good for health.
也许它们不太可口，但它们对健康有益处。
解释：因为后一句有but，所以B项的although（虽然）是不能用的。另外，前一句并不表示原因，所以because也不能选。Maybe用在这里，语气是可以的。

Answer 2

选A

Although和but只需要用一个就能表达“虽然....但是...”的意思，不能两个共用
就像because和so不能连用一样.

Answer 3

我觉得是A 如果是B的话 后面就不应该有but了