请教: LAST-5-2-13

13.If that insect is a bee, it can only sting once. It only did sting once. So it is a bee.

Which one of the following exhibits a pattern of reasoning most similar to that in the argument above?

(A) Spring is here. It has to be, because when it is spring, I cannot stop sneezing; and I just sneezed.

(B) When the sky is clear, the atmospheric pressure is high. At the moment, it is clearing up, so the atmospheric pressure is bound to be high soon.

(C) Old and brittle paintings are always moved with extreme care. That particular painting is never moved with extreme care. So it must not be old and brittle.

(D) Only one more thunderstorm was needed to ruin that roof. But the roof was still fine a month later. There must not have been any thunderstorm over that month.

(E) To survive in the wild requires physical stamina like Mark’s. All the same, Mark’s fear of spiders would prevent his survival.

答案是A。

我的理解：原题的逻辑关系是：A-->B，B-->A。 但是我这么就看不出A中的这样的逻辑关系，可能是它的语序不同。请问该如何理解象A中这样的语序？

谢谢！