He wasn't _______ with the knife, and cut himself.
A:careful enough
B:enough careful
C:enough carefully
⑴ ____
⑵ ____
⑶ ____
⑷ ____
⑸ ____
⑹ ____
二次函数y=x2+2x﹣3的图象与y轴的交点坐标是( )
***的亲笔题词,是中国革命和建设事业指导思想的高度概括。以下四幅题词哪一幅是***为科学文化工作题的词( )