下列不是矿山生态恢复与治理主要任务的是( )。A．加强矿藏资源的有效利用 B．加强

小题1:.My brother a__________ a knowledge of computers by careful study. 

小题2:.Can you tell me a________ of time if you’re coming?

小题3:.I a_________ of your trying to earn some money, but please don’t neglect your studies.

小题4:.They a_________ the value of the house at over $250,000.

小题5:.I’m d__________ to hear of your success.

小题6:.When you find someone hurt, you should perform first a___as soon as possible.

小题7:. Why do you value money so much? Is it e__________ to happiness?

小题8:.The d_________ air in the room will make food go bad easily.

小题9:. He has gone to the hospital for special t___________ because of his high fever.

小题10:..Remember to cover the burned area with a dry and clean b_________.

变压器在同等负荷及同等冷却条件下，油温比平时高（）℃，应判断变压器发生内部故障。

A.5 

B.10 

C.15 

D.20

乙型脑炎主要的死亡原因是（）

A.过高热

B.脑水肿、脑疝形成

C.中枢性呼吸衰竭

D.外周性呼吸衰竭

E.循环衰竭

牙本质龋最前缘的改变是

A．透明牙本质形成

B．脱矿

C．细菌侵入

D．成牙本质细胞突起脂肪变性

E．再矿化

心脏左前斜位，冠状面与胶片的夹角是（）

A.30°～50°

B.45°～55°

C.55°～65°

D.70°～80°

E.85°