皮皮学，免费搜题
登录
搜题
【单选题】
______ helped them to live a better life than most people of that time.A.
The knowledge of time
B.
The knowledge of tools
C.
The knowledge of about nature and the world
D.
The knowledge of numbers
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】On my way home, I saw a young man with ____ shoulders trying to find out how____ the river is by walking across it. [ ]
A.
wide; wide
B.
broad; broad
C.
broad; wide
D.
wide; broad
【单选题】________ back, I saw a young man walking toward me.
A.
Turn
B.
Turned
C.
To turn
D.
Turning
【简答题】监控系统维护保养要经常对员工进行正确使用和爱护技防设备的教育，形成技防管理()的氛围。
【简答题】耻其技之不若 技之不若：
【简答题】支持贫困家庭子女接受技工教育和职业培训，使其掌握一技之长，走技能成才之路，实现()的目标。