题干
It is not J. K. Rowling but her works that _____ us excited.
A：make
B：is made
C：make
D：are made
答案(点此获取答案解析）
C
A：make
B：is made
C：make
D：are made
对应的粒子:Mg2+；⑤氯化亚铁的化学式:FeCl2；⑥-2价的氧元素:O2-。其中正确的有（ ）
