1#和2#合成塔电炉的功率分别是多少？

为切实解决好进城务工子女“读书难”问题，从2008年起，广州接受义务教育的流动人口子女将达四十五万八千三百人．这个数写作______，改写成“万”作单位并保留一位小数是______．

It ________ me that I could buy the admission ticket of the exhibition at the discount of 50% with my student card, ________ made me extremely excited.

A．happened to; that

B．occurred to; it

C．happened to; which

D．occurred to; which

显示多生牙、埋伏牙的位置、牙根病变、腭裂间隙等情况，要做（）

A.X线头影测量

B.手腕部X线片

C.咬合片

D.全曲面断层片

E.牙片

痛风急性发作期，全天食物中嘌呤摄入量应控制在（）。

A.300mg

B.400mg

C.<150mg

D.250mg

E.<50mg