猜你喜欢
- 1it happen to sb that 和 sb happen to do sth 表达的意思一样么
- 2一个长120米,宽80米的长方形操场,先铺15厘米的三合土,再铺5厘米的煤渣,需要三合土和煤渣共多少立方米?
- 3在标准状况下,有1mol气体A发生如下反应:2A(g)=可逆=xB(g)+C(g),在同一条件下已达到平衡,在平衡混合气体中,A体积分数为40%,混合气体的总质量为17g,密度为0.61g/L.
- 4ask you to do the same thing 意思
- 5Are your classroom No.17?和Is you classroom No.17?哪句正确?
- 6can tigers really swimming
- 7your heart is in my hand
- 8张师傅原计划6天加工150个零件.改进技术后,用计划时间的一半不仅完成了原计划,还超额30个,按现在的效率,_天就能完成任务.
- 9Present simple,present continuous,present perfect simple,present perfect continuous
- 10湖心亭看雪的写作背景