A:甲和丙
B:甲和丁
C:乙和丙
D:乙和丁
下列词语中,没有错别字的一项是( )
Don't worry about him. ________he grows older,he will learn to deal with different problems properly.
读地球公转的“二分二至”图,回答下题:
如图所示的四个图案中,轴对称图形的个数是( )