請教大大 我們都知道兩個獨立子句中需連接詞，但為什麼有些閱讀測驗段落只用逗號連
結(如下面兩段皆用逗號)？
如果英文作文這樣寫是對的嗎?
目前找不到相關解說，能否提供相關資訊，謝謝!
段落一
Around 1606, he had studied dispersion in prisms, measured the refractive indi
ces of different liquids placed in a hollow glass prism, studied refraction in
crystal spheres, and correctly understood refraction in the rainbow before De
scartes.
段落二
Perhaps the most interesting thing is that the first discovery of the sine law
, made by the sixteenth-century English scientist Thomas Harriot (1560-1621),
has been almost completely overlooked by physicists, despite much published ma
terial describing his contribution.