小题1: Jack _________ his father. They are both clever and a bit quiet.

小题2: She hasn’t seen her dog for three days. She is very __________ it.

小题3: I _________ have short hair but now I grow it long.

小题4: If you were more________ to people, you would have more friends.

小题5:You have to be 18 years old before you __________ drive.

降低熟料中FCaO的措施有（）。

A.选择结晶物质少的原料，配料合理

B.提高生料质量，加强煅烧

C.急冷、增加混合材掺量

D.慢冷、降低混合材掺量