实际气体状态方程式的表达式为：pV=ZnRT，Z值根据天然气的（）从相关表格中可查得。
A.p
B.V
C.T
D.p和T
参考答案：D
“How does he often go to school?” “ ”
A. By a bike B. By his bike C. On his bike
由下丘脑视上核和室旁核分泌激素是（）
A.催乳素
B.甲状旁腺素
C.胰岛素
D.精氨酸加压素
E.生长激素
