【单选题】关于链表结构,陈述错误的是 。

【单选题】下列关于构造方法的特点的描述中,错误的是 。

【判断题】在构造方法中如调用 super() 语句,则必须使其成为构造方法中的第一条语句。

【单选题】字符串 s='a\nb\tc' ,则 len(s) 的值是( )。

【判断题】Java 语言中,构造方法是可以继承的。( )

【单选题】关于 Python中的复数,下列说法错误的是( )

【单选题】下列选项中合法的标识符是( )。

【判断题】文档注释符/**···*/是Java语言特有的注释符。( )

【单选题】关于Java垃圾收集叙述正确的是( )。

【单选题】3. What did the doctor think was the reason for his trouble?

【单选题】下列是Java语言中可用的注释符,其中错误的是 。

【单选题】55.在Excel中,求最小值是函数是( )。

【单选题】8. 企业的下列固定资产不提折旧的是( )

【判断题】捕获异常时try语句后面通常跟有一个或多个catch()方法用来处理try块内生成的异常事件。( )

【判断题】Java 语言既是面向对象的又是面向网络的高级语言。( )

【判断题】说明或声明数组时不分配内存大小,创建数组时分配内存大小。()

【单选题】5. Which of the following is true?

【判断题】Java 语言中数据类型占内存字节数与平台无关。( )

【判断题】对象可作方法参数,对象数组不能做方法参数。( )

【单选题】下列关包的描述中,错误的是 。

【单选题】下列关于运算符优先级的描述中,错误的是 。

【单选题】93.IF(logical_test,value_if_true,value_if_false)中,value_if_true的含义是()

【判断题】产品经理是对某个产品或产品线担负主要责任

【单选题】下列关于异常的描述中,错误的是 。

【单选题】下列关于接口的描述中,错误的是 。

【单选题】下列表达式中,值不是 1的是( )。

【单选题】7. People who love trees may______.

【多选题】产品经理需要具备哪些素质

【判断题】枚举接口中定义了具有删除功能的方法。( )

【判断题】字符串可分为字符串常量和字符串变量两种,它们都是对象。()

【判断题】创建对象是系统将调用适当的构造方法给对象初始化。( )

【填空题】Java语言的类型检查机制要求对于没有返回值的方法,在其前面必须加______进行说明。在Java语言中,所有的对象均通过运算符______分配内存,并对内存进行自动管理。

【判断题】使用运算符new创建对象时,赋给对象的值实际上是一个地址值。( )

【单选题】2. What did the doctor say was the writer’s trouble?

【判断题】产品经理上线后才需要产品运营

【单选题】Task 1 I have always felt proud of my good health because I sometimes only had to take one day off when I had a cold. So I got unhappy when I met with my doctor in the street one day. He told me that I was too heavy and if I didn’t lose weight, I would have heart trouble. He added that like many middle-aged men, I lived too easy alife. I sat behind my office desk in the day and sat before the TV set in theevening. My doctor advised me to go on a diet ( 节食 ) at once. I tried, but failed. I like my food very much and my wife is a very good cook. I then decided that it was all a question of exercise. I decided that I would not go to the seaside for holiday this year. There you could do nothing but go down to the beach and lie in the sun. I would not take my car, either. I knew we would drive about everywhere in it. We chose a village far away from the city. There was no road for car there and we could walk every day. After our first day’s walk I felt very tired, but we went on walking. I began to feel healthier and healthier. However, with so much exercise, I had a healthy appetite ( 胃口 ). When Igot back home, I found that I hadn’t lost any weight. I had become heavier. 1. Why does the writer feel proud?

【单选题】以下叙述中正确的是 ( ) 。

【单选题】Task 2 Healthy trees are important to us all. Trees provide shade, beauty, and homes for wildlife. Trees give us products like paper and wood. Trees can give us all these only if they are healthy. They must be well cared for to remain healthy. Your trees’ trouble may be you yourself. People spend much time and money to plant and maintain trees. Tree improves the looks of homes, parks, business, and public buildings. Yet, people who love trees the most may be the ones who cause them injury. Of course, they do not do this on purpose. They are most likely not aware of the kinds of things that injure trees. There are many people-caused tree injuries. You should become aware of them and avoid them. Learn the things that can help to keep your trees healthy. Healthy trees are beautiful. They make our world a pleasant place to live. Unhealthy trees are not as beautiful. They make the world less pleasant. Healthy trees help to cool and clean the air. They can even deaden ( 闷抑 )sound. Unhealthy trees cannot help or protect the environment. Trees, like people, are disturbed by changes around them. Construction of buildings is a major cause of tree injuries. 6. According to the passage, only_____ trees can give us shade and products.

【单选题】Java 程序经过编译后生成的文件的后缀是 。

【判断题】任何变量在使用前都必须显式初始化。

【判断题】若所有的用户线程都终止了,Java程序就会结束。( )

【单选题】当对线程进行调度使其暂停时,暂停的时间单位是 。

【单选题】Python 语句 print(r"\nGood") 的运行结果是 ( ) 。

【判断题】Java 语言中定义符号常量使用final关键字。( )

【判断题】异常是一种特殊的运行错误的对象。( )

【单选题】4. Why did he decide not to go to the seaside for holiday?

【单选题】Python语言属于( )。

【判断题】下列两个命令:javac 和java是不同的,编译时用前者,运行时用后者。( )

【单选题】下列标识符中合法的是( )。

【单选题】11111111111111111111111111111111111111