一个四棱锥和一个三棱锥恰好可以拼接成一个三棱柱.这个四棱锥的底面为正方形,且底面边长与各侧棱长相等,这个三棱锥的底面边长与各侧棱长也都相等.设四棱锥、三棱锥、三棱柱的高分别为,,,则( )
For a moment nothing happened. Then _____ all shouting together.
_____ two exams to worry about, I have to work really hard this weekend.
Eating too much fat can _____ heart disease and cause high blood pressure.
_____ we can’t get seems better than _____ we have.
Twelve Cubans left the embassy after_____ there for several days.