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【单选题】
由于机遇,科学家获得了新成果,这是( )。A.
必然的结果
B.
命运的安排
C.
偶然的巧合
D.
偶然中隐藏着必然
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【单选题】What will take place in the next few years, according to the president?
A.
A big change in technologies and in the way of thinking.
B.
A change in digitalisation.
C.
A change in the way of manufacturing.
D.
A change in the business cycle.
【单选题】A.Have a big deal with the woman.B.Take the paper out of the copy machine.
A.
Have a big deal with the woman.
B.
Take the paper out of the copy machine.
C.
Buy a new copy machine.
D.
Ask someone to repair the copy machine.
【简答题】在新产品的开发工作过程中 ,有 ( )、 ( )、 自行研究与技术引进相结合的方法、 ( )四种 开发方法。
【简答题】(9-3)对输入的字符串进行判断。要求如下: (1) 自定义一个异常类NotPositiveException,继承Exception, (2) 输入一个字符串str,利用Integer的parseInt(str)方法把字符串str解析成整数x; 3)如果x是负整数或零,抛出NotPositiveException对象; (4)如果不能解析成功,捕获parseInt(str)方法抛出的Number...
【单选题】I have got _______ good news for you．You are to change _______ trains in Changsha and take _______ fast one.
A.
/; /; a
B.
a; /; a
C.
a; the; the
D.
/; the; a
【单选题】—Which tie would you prefer，the black tie or the red one，Madam? —I’ll take ________ to have a change sometimes.
A.
neither
B.
none
C.
either
D.
both
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