慢性龋又称为
A.浅龋
B.潜行性龋
C.静止龋
D.干性龋
E.继发性龋
参考答案:D
电冰箱存放食品时,冷冻室可以储藏密封的玻璃制品。
________ our surprise, when the audience saw this film, they all shouted ______ surprise.
A.In ; in
B.In ; at
C.To ; in
D.To ; at