A:下丘脑分泌细胞能分泌激素
B:激素只能通过导管进入血液
C:激素发挥作用后被灭活
D:胃、肠部分细胞也具有内分泌功能
建国以来党的历史上具有深远意义的伟大转折是:
词汇:根据音标或汉语意思提示完成句子。
Lily is a ____/ʃaɪ/ girl. She is afraid of speaking in class.
I want to buy some postcards in the shop, ______ I don't have enough money.