机械设备的保养一般分为例行保养、一级保养、二级保养、三级保养,由操作人员完成()保养。
参考答案:例行保养,一及保养
This is our classroom. It is a new room. (1)There are four windows in the walls. The walls are white. There is a map of China on the back wall. (2)教室里有五十五张桌椅。They are for our students . There is a big desk over there, too. It’s the (3)___________ desk. We like all our teachers very much.
1、将(1)处的英文译成汉语。
2、将(2)处的汉语译成英文。
3、在(3)处的空白处填上适当的单词。
4、从文中找出与下列句子意思相近的句子:The room is new.
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5、给文章加上合适的标题:
下列仅属于施工阶段监理工作制度的有( )。
A.施工组织设计审核制度
B.合同条件拟定及审批制度
C.对外行文审批制度
D.工程竣工验收制度
E.设计交底制度