【单选题】2019年5月4日电,五四青年节来临之际,各级共青团组织认真学习宣传贯彻习近平总书记在纪念五四运动100周年大会上的重要讲话精神,广泛开展( )主题团日活动。
【简答题】速冻机的结构可以根据冻结方法分为三类:( 1 ) 冻结法。具体装置有:鼓风式: 推车 式、 、 式、 式;流态化式: 式、 一段带 式、 两段带 式、 式等。( 2 )间接接触法: 式、 式、 式、 式等。( 3 )直接接触法: 冻结装置和 冻结装置等。
【单选题】以下关于本实验的说法正确的是( )
A.
本实验中只需测得调制波的波长,将该波长乘以调制波的频率就可以测得光速
B.
本实验中只需测得调制波的波长,将该波长乘以光波的频率就可以测得光速
C.
本实验通过调制波来测得光波的波长,将该波长乘以光波的频率就可以测得光速
D.
本实验通过调制波来测得光波的波长,将该波长乘以调制波的频率就可以测得光速
【多选题】A Chinese exporter received one set of irrevocable L/C from abroad with the China branch of a foreign bank as the advising bank and confirming bank. After the shipment, at the time that the exporter w...
A.
The exporter shall make shipment as stipulated and make document presentation to the foreign bank for the payment
B.
In accordance with UCP600, the confirming bank and the issuing bank are both taken as first payers with responsibility of making payment to the beneficiary
C.
The confirming bank is required to make negotiation and payment so long as the beneficiary makes presentation to the confirming bank with the documnents complying with the L/C
D.
To avoiding risk ,the exporter shall stop to delivery
【简答题】2019年5月4日电,青年节来临之际,各级共青团组织认真学习宣传贯彻在纪念100周年大会上的重要讲话精神,广泛开展____主题团日活动
【多选题】关于SFTP协议下列说法错误的是
C.
SFTP与SSH是两种安全协议, 没有直接关系
D.
配置SFTP服务器时用户的服务类型可以设置为SFTP或者All
【简答题】A.The bank near the railway station closes late. B.The bank around the corner is not open today. C.The woman should try her luck in the bank nearby. D.The woman should use dollars instead of pounds.
【多选题】关于本实验声波产生和接受说法正确的是:
D.
系统谐振调节时,信号源频率应该由小到大,全范围调节