Mr. Green lives in a big city with his wife and two children. One morning Mr. Green takes his new car and washes it when a friend comes. The friend stops and looks at the new car for a minute. Then he asks, "That's a new car. Is it yours? "
"Sometimes." Mr. Green answers.
   The friend is surprised (惊奇). "Sometimes? " he says. "What do you mean?" Mr. Green answers slowly, "Well, when there is a party in town, my daughter Jean drives it. When there is a football, it's my son Jim's turn. When I washes it and it looks very nice and clean, my wife Linda uses it. And when it needs cleaning. It's mine. Choose the correct answer.

已知一个底面是菱形的直棱柱的侧棱长为5，菱形的对角线的长分别是9和15，则这个棱柱的侧面积是（　　）

下图是人体消化系统组成示意图，请在括号中填序号，横线上填文字。

(1)食物通过消化道的顺序是：____ 、咽、食道、胃、____ 、大肠和肛门。
(2)人体最大的消化腺是____ ，它分泌的____ 不含消化液。
(3)淀粉开始消化的部位是：____ ；蛋白质开始消化的部位是：____ ；脂肪开始消化的部位是：____ 。
(4)可在短时间内容纳大量食物的是____ ；能蠕动，不能进行消化的是____ 。
(5)淀粉、蛋白质、脂肪在____ 被彻底消化，