你能帮帮他们吗
精彩回答
The child doesn't need any help. He is old enough to ______ himself.
1年前
______ the way, would you please buy me some apples_______ your way home?
1年前
不畏浮云遮望眼,__________ 。 (王安石《登飞来峰》)
1年前
Who called me this morning when I was out?
1年前
将含碳酸银92%的样品30g加入到一定量的稀盐酸中,恰好完全反应,过滤,得到无色滤液94.5g,则所用盐酸中氢元素的质量分数为( )
1年前