—Not really. She ___us clear directions and we were able to find it easily?
A:was to give
B:had given
C:was giving
D:would give
根据图中的入射光线或折射光线,分别作出相应的折射光线或入射光线.
如果不等式组x+8<4x-1x>m的解集是x>3,则m的取值范围是( )
改正下列词语中的错别字。
情不自尽____ 自做自受____