皮皮学,免费搜题
登录
搜题
【单选题】
开环进给伺服系统控制机床,其特点是()
A.
有一个反馈系统多用于高精度数控机床
B.
反馈信号取自伺服电动机的回转,排除机械传动的影响
C.
系统只按数控装置的指令脉冲进行工作,而对执行结果不检测和反馈
D.
可对螺距误差进行补偿
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】具有平喘、利尿功效的息风止痉药是
A.
石决明
B.
天麻
C.
钩藤
D.
地龙
【单选题】The assets section of a classified balance sheet usually includes:
A.
Current assets, long-term investments, plant assets, and intangible assets.
B.
Current assets, long-term assets, revenues, and intangible assets.
C.
Current assets, long-term investments, plant assets, and equity.
D.
Current liabilities, long-term investments, plant assets, and intangible assets.
【简答题】The assets section of the balance sheet presents assets in the order that they will be converted into ( ) or used in ( ).
【单选题】The assets section of a classified balance sheet usually includes
A.
Current assets, long-term investments, plant assets, and intangible assets.
B.
Current assets, long-term assets, revenues, and intangible assets.
C.
Current assets, long-term investments, plant assets, and equity.
D.
Current liabilities, long-term investments, plant assets, and intangible assets.
E.
Current assets, liabilities, plant assets, and intangible assets.
【多选题】补子,又称胸背,简称补,指( )、( )、( )、( )官员服装上位于胸前和背后的方形装饰。
A.
明朝及清朝
B.
朝鲜王朝
C.
越南黎朝
D.
琉球国
【判断题】无线电波的频率与波长成反比,理论上波长×频率=速度
A.
正确
B.
错误
【单选题】在圣诞节时,地球公转位置距离()位置最近。
A.
近日点
B.
远日点
C.
春分点
D.
秋分点
【单选题】某企业只生产销售甲产品,正常经营条件下的销售量为5000件,单价为200元/件,单位变动成本为150元/件,固定成本为130000元。下列表述正确的是( )。
A.
单位边际贡献为150元
B.
边际贡献率为75%
C.
变动成本率为25%
D.
安全边际量为2400
【单选题】The current assets section of the statement of financial position should include
A.
machinery.
B.
patents.
C.
goodwill.
D.
inventory.
【单选题】某企业只生产销售甲产品,正常经营条件下的销售量为5000件,单价为200元/件,单位变动成本为150元/件,固定成本为130000元。下列表述正确的是( )。
A.
单位边际贡献为150元
B.
边际贡献率为25%
C.
变动成本率为25%
D.
安全边际率为40%
相关题目: