【简答题】Can you offer us machine tools ______ the following specification in accordance ______ the terms of the sales contract.
【单选题】Which of the following is true according to the passage?
A.
The widowed seem to have a longer life expectancy.
B.
Those who lead a normal marriage life live longer than those who do not.
C.
Single people live a short life because they are lonely.
D.
Mothers of four children live a longer life than childless women.
【判断题】can you offer us machine tools with the follow specification?()
【单选题】The streets here are not so _______ as those in our city. [ ]
【单选题】面向对象方法的多态性是指( )
C.
针对一消息,不同的对象可以以适合自身的方式加以响应
【判断题】电子签名是指用符号及代码组成电子密码进行“签名”,不可以代替书写签名或印章。
【单选题】We can learn from the passage that ______.
A.
the hotels where you stay will offer you free breakfast
B.
dining information can be obtained from your tour guides
C.
you can have a complete choice of local dishes at the hotel
D.
a full list of local restaurants can be found on the tour pages
【单选题】面向对象方法的多态性是指( )。
B.
针对同一消息,不同的对象可以以适合自身的方式加以响应。
【单选题】当发现冷水机组大量泄漏制冷剂时,以下说法正确的是