物理量速度的量纲是长度/时间,其量纲或因次可用()表示。
A、[LT-1]
B、[LT-2]
C、kg
D、m
参考答案:A
代词主格、宾格的使用:用括号里的词填空,注意大小写。
1. Please give something to eat . am hungry . ( I, me )
2. come from America and we want to learn Chinese. Please tell how to learn it ( us, we )
3. Do you want to see ? are waiting for you !( they , them )
4. Would you like to call ? wants to meet you again .( he, him )
5. Would you like to have dinner with ? OK, I’d love to. is very kind .( her ,she )
《国家中长期教育改革和发展规划纲要》的工作方针是什么?