给下列加横线字注音有误的是（ ）。
骥 刹那 黯淡 缝隙 倒行逆施
侥幸 载体 嵌入 痕迹 纯粹
A：jì chà àn xì dào jiǎo zǎi qiàn jì cuì
B：jì chà àn xì dào yǎo zǎi qiàn jì cuì
C：jì chà àn xì dǎo jiǎo zǎi qiàn jì cuì
D：jì chà àn xì dào jiǎo zǎi qiàn jī cuì
下列事件中，属于必然事件是（ ）
There is an ongoing debate about the potentially ____(harm)effects that text messaging can have on people's grammar.
