主要侵害视神经的酒类成分是（）
A．杂醇油
B．甲醇
C．乙醇
D．氰化物
E．甲醛
参考答案：B
以下能判断是否到达文件尾的函数是( )
A．BOF B．LOCC．LOF D．EOF
按要求完成句子。
1. Toby won aprize last time.（改为一般疑问句）
________Toby________ a prize last time?
2. Did she see any seals there?(改为陈述句）
She________ ________ seals there.
3. She eats some ice cream every day.（用yesterday改写句子）
She________ some ice cream yesterday.
4. What else did you do?（改为同义句）
What________ ________ did you do?
