【单选题】下面关于关系数据库视图的描述不正确的是( )。
【单选题】One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the ___________.
【单选题】On the top of the cylinder is mounted the cylinder cover which is pressed onto _____ of the cylinder liner by means of nuts and studs.
【单选题】下面关于关系数据库视图的描述不正确的是( )。
【单选题】下面关于关系数据库视图的描述不正确的是( )。
【单选题】There is a support ring between the cylinder block and collar of the cylinder liner, thus carrying both the liner and the cylinder coverIt also passes to the cooling bores and to the cover.