农村公路路基填筑前，对土质材料必须做液塑限试验，确定土类和塑性指数，确定其填筑性能。

—All the students in Class One went to the cinema           Li Ping. Why?

—Because he had a stomachache.       [ ]

A. besides                    

B. without

C. except                    

D. beside

木制琵琶桶

There________ an orange and two apples on the table.          [ ]

A. are                    

B. has                      

C. is

金红石，二氧化钛矿砂

世界语