蒸腾作用
参考答案：
水分以气体状态通过植物体表面从体内散失到体外的现象。
活动载体
Which of the following is commonly used to bid farewell among the Chinese people as well as among English speakers
A．It’s nice to have met you.
B．Walk well, please.
C．See you tomorrow.
D．I’m pleased to know you.
