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【单选题】
下列关于硬盘的描述,不正确的是( )。A.
硬盘是指记录介质为硬质圆形盘片的磁表面存储器
B.
硬盘主要由磁记录介质、磁盘控制器、磁盘驱动器三部分组成
C.
硬盘主要有可移动磁头固定盘片的磁盘机、固定磁头磁盘机、可移动磁头可换盘片的磁盘机三种类型
D.
磁盘控制器包括控制逻辑与时序、数据并-串变换电路、串-并变换电路和读写转换开关
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皮皮学刷刷变学霸
举一反三
【单选题】切片时组织过硬,变脆的原因是
A.
组织脱水、透明和浸蜡过度
B.
固定失时或固定不当
C.
陈旧、腐败或干枯的组织
D.
组织脱水、透明和浸蜡不足
E.
切片刀不锋利,固定不牢
【单选题】切片时组织过硬、变脆的原因是
A.
组织脱水、透明和浸蜡过度
B.
固定失时或固定不当
C.
陈旧、腐败或干枯
D.
组织脱水、透明、浸蜡不足
E.
切片刀不锋利,固定不牢
【单选题】Coronation Street is a British soap opera set in Weatherfield, a fictional town in Greater Manchester, a city in Britain. It was sold as a kitchen sink drama serial about the domestic lives of the wor...
A.
In Weatherfield.
B.
In Erinsborough.
C.
In Manchester.
D.
In an English city
【单选题】下面命题不正确的是（ ）
A.
两个内角分别是50°和65°的三角形是等腰三角形
B.
两个外角相等的三角形是等腰三角形
C.
一个外角的平分线平行于一边的三角形是等腰三角形
D.
两个内角不相等的三角形不是等腰三角形
【简答题】齿轮泵常在 MP以下低压系统中应用,叶片泵常在 MP以下的中压系统中应用,柱塞泵常在 MP以上高压系统中应用。
【简答题】Coronation Street is a British soap opera set in Weatherfield, a fictional town in Greater Manchester, a city in Britain. It was sold as a kitchen sink drama serial about the domestic lives of the wor...
【简答题】Section 3: Directions: In this part, you will read 5 English sentences and 5 Chinese sentences. Translate them into Chinese or English respectively. 1. The building is bordered by West Street to the w...
【单选题】Soaps on TVCoronation Street is a British soap opera set in Weatherfield, a fictional town in Greater Manchester, a city in Britain. It was sold as a kitchen sink drama serial about the domestic lives...
A.
Neighbors, it was shown in Britain in 1980.
B.
Coronation Street, it is about the working class in the north of England.
C.
Coronation Street, it has been on TV for more than 50 years.
D.
Coronation Street, it is shown three times a week.
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