皮皮学，免费搜题
登录
搜题
【单选题】
互联网+( )将促进农业转型升级A.
绿色生态
B.
服务
C.
现代农业
D.
便捷服务
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】I know I should have told the head at the time. That was my real 36 . He had gone out of the study for some 37 , leaving me alone. In his absence I looked to see 38 was on his desk. In the 39 wa...
【简答题】料库中原材料或毛坯件的材料钢号为：Q255、Q345、45、40crNi、65Mn、QT600-02、5CrNiM0、Cr12MoV、W18Cr4v、1Cr18Ni9Ti、20CrMnTi、ZGMn13、60Si2Mn、T12。试填下表。 零 件 性能要求 选 材 最终热处理 使用态组织 机床传动齿轮 齿部表面较高硬度和耐磨性 汽车动力齿轮 齿部表面高硬度和疲劳强度，心部高强韧性 耐酸容器 耐酸性...
【单选题】Our grade held the grown-up ceremony on March, 21st, _____ I have been well aware of my responsibility for our society. [ ]
A.
when
B.
during which
C.
since then
D.
since when
【简答题】缺词填空。 Halloween is my favourite festival. We have a special p 1 on October 31st. My friends and I always d 2 up at Halloween. We wear special costumes w 3 masks. Sometimes we p 4 our faces and people ...
【单选题】下述药物治疗慢性阻塞性肺疾病的目的中，不正确的是（）
A.
排痰化痰
B.
预防和控制症状
C.
减少急性加重的频次
D.
减少急性加重的程度
E.
改善健康状况和运动耐力
【简答题】现有下列钢号：①Cr12MoV②W18Cr4V③5CrNiM0④60Si2Mn⑤ZGMn13⑥Q345⑦1Cr13⑧20CrMnTi⑨40Cr⑩1Cr18Ni9Ti。请按用途选择钢号： A．制造机床齿轮应选用( )材料B．制造汽车板簧应选用( )材料 C．制造桥梁应选用( )材料 D．制造耐酸容器应选用( )材料 E．制造高速车刀应选用( )材料 F．制造大尺寸...
【简答题】c________ n. 契约,合同
【简答题】听录音，补全对话。 Amy: In my room, I have a mirror. John: In my room, I have a ________________. Sarah: In my room, I have a ________________. Chen Jie: There is an ________________ in my room. Mike: There ar...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
