請問pp test1裡面的問題@@...選錯的- - 1 The Mississippi riverboat, which evolved from simpler steamship of the -------- --------- early 1800's, became the dominant form of passenger transport on the -------- ------------------- Mississippi River. 2 Modern stringed instruments comprise both instruments of ancient ---- ------- origian, such as the harp ,and the developed recently family of bowed ------- ------------------ instruments that includes the violin. 答案1是steamship 這裡 2是developed recently這裡 為什麼會這樣呢@@....請問好心英文高手網友.....@@ ~