“稻花香里说丰年，听取蛙声一片．”这里的蛙声是雄蛙在（ ）

Mother：Sally, can you help me, please? I want to go shopping.

Sally : OK. Mum. What do you want to buy?

Mum : Some eggs, some oranges, some milk, and some chicken for supper. What can we have for lunch tomorrow?

Sally : I don't know.

Mother : Oh ,yes, it is. Some fish.

Sally : Is fish very expensive ( 昂贵的）?

Mother: Yes , it is. But dad likes fish.

Sally : What about some rice?

Mother : I want some nice bread.

Sally : OK. Let' s go.

判断是否动脉出血，要看（　　）

如图是探究平面镜成像特点的实验装置图．