1. 改錯(cuò)：with→and2. 解釋：前句提到了“兩個(gè)原因”：two causes；第一個(gè)是“科研經(jīng)費(fèi)的減少”：less funding for scientific research；第二個(gè)就是“相關(guān)太空和防衛(wèi)方面的工作的減少”：a decrease in jobs related to space and defense.既然是并列，當(dāng)然用并列連詞and，不能用做狀語(yǔ)的介賓短語(yǔ)：with a decrease in jobs related to space and defense.