全口义齿基托与唾液或黏膜与唾液之间产生的吸力称为
A.大气压力
B.黏着力
C.附着力
D.摩擦力
E.内阻力
参考答案:C
I finally got the job I dreamed about. Never in all my life ________ so happy!
A.did I feel
B.I felt
C.I had felt
D.had I felt
工艺美术运动简述