你能帮帮他们吗
精彩回答
Checking your answers before handing in your paper can help you ________ mistakes.
1年前
It's ________ to stick your chopsticks into your food while having a meal.
1年前
Tom isn't Chinese. He's _______ English boy. [ ]
1年前
生物圈中,生物与环境的关系主要有:生物影响环境,生物适应环境,环境影响生物等。生物与环境的相互作用共同造就了今天欣欣向荣的生物圈。请分析下列事例,回答问题。
1年前
求lim(x趋向于0)1/(x^3)∫(上限为x下限为0)sin(t^2)dt
1年前