搜题请搜索小程序“爱下问搜题”
问题 单项选择题

左上乳尖牙唇面深龋盖髓后选择充填材料是

A．银汞充填
B．复合体充填
C．光敏树脂
D．嵌体
E．预成冠

答案

参考答案：B

完形填空
请阅读短文，选择合适的选项。
      Look at that big table. There are some books on 1___________. The books are 2___________. Near the
books, there is a new computer. It's Mary's 3___________. 4___________ works on 5___________ computer.
On the wall, there is a big picture. It's very nice. The picture is from Mary's mother. 6___________ is an art
teacher. She teaches 7___________ in our school. She draws wonderful pictures. 8___________ call her Mrs.
Brown. Mary and 9___________ are in the same class. 10___________ are good friends.
( ) 1. A. that
( ) 2. A. Mary's
( ) 3. A. father
( ) 4. A. His
( ) 5. A. a
( ) 6. A. She
( ) 7. A. we
( ) 8. A. You
( ) 9. A. I
( ) 10. A. They		B. it
B. Mary
B. father's  
B. Him
B. an
B. He
B. our 
B. We 
B. my
B. We		C. there
C. Mary is
C. is father
C. He
C. the
C. Her
C. us
C. Our
C. mine
C. You
查看答案
单项选择题 案例分析题

下图是某地的等高线地形图，读图回答下列题。

图中乙地最可能遭受的地质灾害是（）

A.地层下陷

B.泥石流

C.洪水

D.滑坡
查看答案