位于美国西北部落基山区的（）是世界上建立最早的国家公园，以世界奇观间歇喷泉而闻名于世

—____________ does Jim get up?  

—He gets up at 6 am.     [ ]

A. How much    

B. What time    

C. Where      

D. How

下列有关晶胞的叙述，正确的是 [ ]

A.晶胞是晶体的最小的结构重复单元

B.不同的晶体中晶胞的大小和形状都相同

C.晶胞中的任何一个粒子都属于该晶胞

D.已知晶胞的组成就可推知晶体的组成

什么是房屋的共有建筑面积？

We had guests last night who have not stayed in a B&B hotel ago. They did not want breakfast because that they were going out early in the morning. They came back lately and had some tea. I came into the living room and saw one of them just go through the kitchen door but turn on the light. He was looking for a glass the cupboard. He had no ideas that the kitchen was not for guests. I just smiled to me and thought, "What can I do We are guests after all. \

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