【单选题】Struts2应用程序中,所有的Action类在处理完成之后,返回的都是一个字符串类型的结果,这个结果作为一个( )视图而存在。
【单选题】在struts2的action类中有一个User类型属性user,并且提供了user的getter和setter方法。该User中有一个属性username,并且提供了该属性的getter和setter方法,以下表单提交,username可以获取到值的是()
【判断题】血红蛋白不仅可以运输氧,还可以运输少量的二氧化碳。
【单选题】In the ISM Code, “company” doesn’t mean__________.
B.
the manager or bareboat charter
C.
a person assuming the responsibility for ship operation
D.
a business enterprise dealing with freight
【单选题】Under ISM Code, the ship to which it applies has to carry _____.
A.
an international ship security certificate
B.
an international oil pollution prevention certificate
C.
a safety management certificate
D.
an international ballast water management certificate
【单选题】The ISM code is part of _____
【单选题】【单选】The ISM code is part of ______.
【单选题】关于有限元强度折减法的优缺点,下列说法错误的是
C.
由于强度参数的非比例特性,粘聚力和内摩擦角的折减不能精确成立