皮皮学，免费搜题
登录
搜题
【单选题】
熔化极气体保护焊焊接前应检查焊接设备的( )、开关和保险丝,且相应参数必须符合焊机铭牌上的要求。A.
电源电压
B.
气体流量
C.
气体种类
D.
焊丝直径
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】国务院颁布《关于机关事业单位工作人员养老保险制度改革的决定》，对机关事业单位工作人员养老保险制度进行改革，建立与城市职工统一的养老保险制度，正式结束了实行二十几年的养老“双轨制”。养老保险制度改革旨在
A.
抑制通货膨胀→促进经济发展→改善人民生活
B.
完善社会保障→缩小收入差距→实现社会公平
C.
调节过高收入→完善社会保障→促进经济发展
D.
增加社会供给→抑制价格上涨→促进社会和谐
【简答题】请说说今天的课让你的哪些能力得到了提升?
【单选题】From the author's comments and the example of the bulls (Paragraph 4), what was the most likely reason for which Hemingway took care to include details of place?
A.
He felt that geography in some way illuminated other more important events.
B.
He thought readers generally did not have enough imagination to visualize he scenes fro themselves.
C.
He thought that landscapes were more important than characters to convey 'the way it was'.
D.
He felt that without background information the readers would be unable to follow the story.
相关题目：