【单选题】单作用叶片泵、双作用叶片泵和叶片式马达的叶片安装方向通常为( )。
【单选题】In sales by sample, if there is no other specifications (规定) on the goods in the contract, then the goods ( ).
A.
may not be the same as the sample
B.
must be the same as the sample
C.
may be nearly the same as the sample
D.
may be different from the sample
【单选题】While sales by sample, if there is no other stipulations on the goods in the contract ,then the goods ______.
A.
may bd roughly the same as the sample
B.
may be the samle as the sample
C.
may have reasonalble tolerance
D.
may have reasonable difference on specification
【单选题】If there is no other way to save a( )person in a tall building on fire, fire fighters may spread a net into which the person can jump.
【单选题】对1:10万地形图进行分幅时,经差和纬差分别是()
【单选题】While sales by sample, if there is no other stipulations on the goods in the contract, then the goods _________.
A.
may be roughly the same as the sample
B.
must be the same as the sample
C.
may have reasonable tolerance
D.
may have reasonable differences on specification
【单选题】下列哪种现象说明了现代信息技术对人们生活的消极影响?()