运行中所需小量的润滑油和日常用的油壶、油枪，必须放在指定地点的（）内。A、分场库房

在血库中冷藏3天以上的血无传染梅毒的危险。()

三级耐火等级的民用建筑物，最多允许层数是()层。

A．3

B．5

C．6

D．8

短文改错 (共10小题；每小题1分，满分10分)

Today I was having a PE lesson while I fell down and hurt my foot．I was in great pain at that moment but I tried to act as if nothing happened until the class was over． Although I had difficulty walk back to my classroom, but I still didn't tell anyone and even refused the offer of help from my classmates． As the result, the hurt on my foot became worse．Now I know I am wrong．We can tell other our need for help and accept their help．Someday we can help him in return．In this way, we can get along with each other happy and peacefully．

生物转盘采用( )，运行费用低。

A．污泥回流装置

B．人工供氧

C．自然供氧

D．曝气装置

我国的各级人民代表大会选举的选举经费由中央、地方财政支出和选举单位共同承担。