根据句意和首字母提示完成下列句子。There are sixty m____ in an hour.He is ill, and his i____ makes us feel sad.A lot of t____ are visiting the Great Wall, so it is very crowded.Good food and e____ help me to study better.It is n____ to eat a balanced diet.
下面是细胞发生的一系列变化过程示意图,有关分析不正确的是( )
____,青楼梦好,难赋深情。(姜夔《扬州慢》)
8和9的最小公倍数是____。
某同学将标枪以速度v0斜向上投出,v0与水平方向的夹角为θ.则v0沿水平方向的分速度为( )