韭菜的体细胞中含有32条染色体，这些染色体从形态和大小方面分为8种，由此可知韭菜是（　　）

完形填空
    The great ship, the Titanic, sailed for New York from England on April 12th, 1912. The ship had sixteen watertight compartments (密封舱). Even if two of them were broken, she would 1 be able to stay on the water.
    Four days after 2 , while the Titanic was sailing3the icy waters of the North Atlantic, a huge ice mountain suddenly appeared. The great ship turned hard. The Titanic turned just in time, and just missed the big 4 of ice beside her. Suddenly there was a trembling (颤抖的)5 from below and the captain went down to see what had6. The noise had been so weak that 7 thought the ship had been broken. But the captain8that the ship was sinking (下沉) very quickly, for five of the sixteen watertight compartments had already been broken! The order (命令) to 9 the ship was given and hundreds of people jumped into the icy water. As there were not enough lifeboats for everybody, 1,500 lives were 10. Although the sad story has been so many years, people still remember it clearly.

新型纳米材料MFe₂Ox(3<X<4)中，M表示＋2价的金属元素，在反应中化合价不发生变化。常温下，MFe₂Ox能使工业废气中的SO₂转化为S,转化流程如下图所示：

已知MFe₂Oy中Fe为＋3价。下列说法中，不正确的是      (    )