A:13,12
B:-∞,12∪3,+∞
C:12,3
D:-∞,-3
如图,放在水平面上的容器中装有500g水,容器重力为3N,水面h1高为8cm,容器高h2为15cm,容器底面积为40cm2,求:水对容器底的压力和容器对水平面的压强?
①Are they under the table?
②My mother is in the kitchen.
③Is she in the living room?
④Where are my glasses?
⑤No, they aren't.They are in the door.
⑥My sister is in her bedroom.