A new cinema          here. They hope to finish it next month. 

A．will be building

B．is built

C．has been built

D．is being built

关于窝沟封闭剂的保留率正确的是（）

A.下颌牙比上颌牙高

B.年龄小比年龄大高

C.乳牙比恒牙高

D.磨牙比前磨牙高

E.面比颊舌面高