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【简答题】
Many people have to work on the weekend. Some people do not mind. Other people think it is terrible. One man thinks that working on the weekend can be dangerous. He is Graham Coates. Mr. Coates worked in an office in Brighton, England. On Saturday, May 24, 1986, he went to the office to do some work. When he got in the elevator to go home, it stopped between floors. Mr. Coates could not get out of the elevator. He was trapped! He started to shout, but no one heard him. Then Mr. Coates remembered that it was a holiday in England. No one was going to come to work until Tuesday! There was nothing for Mr. Coates to do. He had to wait until one his coworkers came to work and found him. With nothing to eat or drink, Mr. Coates ended up sleeping for most of the time. Early on Tuesday morning, the vice president of the company came into work and found the elevator was not working. When the elevator was opened, Mr. Coates came out cold, weak, and tired. He had been in the elevator for sixty-two hours! Now Mr. Coates says, “I only uses elevators if they have telephones in them.” 1. Mr. Coates could not get out of the elevator because ______. A. it was broken            B. it was a weekend C. it was a holiday           D. it stopped on a wrong floor 2. How long did he stay in the elevator? A. Twenty-four hours.        B. From Saturday to Tuesday. C. More than sixty-four hours.     D. From Thursday to Saturday. 3. What did he do in the elevator most of the time? A. Shouted and screamed.      B. Slept and waited. C. Telephoned his boss.        D. Ate and drank. 4. How did he make his way out in the end? A. The vice-president found him. B. Some one opened the elevator. C. The elevator began to work on Tuesday. D. He found a door in the elevator. 5. What is the best title for this story? A. An Interesting Elevator       B. A Busy Weekend C. Elevator Safety             D. Trapped in an Elevator
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【单选题】某计算机存储器按字节存储,采用小端方式存放数据。假定编译器规定int型和short型长度分别为32位和16位,并且数据按边界对齐存储。某C语言程序段如下:struct { int a; char b; short c;} record;record.a = 273;若record变量的首地址为0xC008,则地址0xC008中内容及record.c的地址分别为
A.
0x00, 0xC00D
B.
0x00, 0xC00E
C.
0x11, 0xC00D
D.
0x11, 0xC00E
【单选题】使用STM32cubeMX软件,使用中断方式,完成3个按键的检测与响应实验。 在 正点原子的战舰 开发板上, 利用 STM32CubeMX 和 Keil5 协同开发, 完成以下的功能: 1】将KEY1,即 PE3 设置为外部中断, 下降沿 触发。在中断服务函数中, 切换LED0的开关状态 。 2】将KEY2,即 PE2 设置为外部中断, 上升沿 触发。在中断服务函 数中, 切换LED2的开关状态 ...
A.
Reset_State
B.
GPIO_Input
C.
GPIO_Output
D.
GPIO_EXTI13
【单选题】下列有关按法的表述,不正确的是( )
A.
可用拇指指腹按压
B.
可用掌部按压
C.
常与揉法组成复合手法
D.
按住后进行移动
【单选题】印花色浆中的染料浓度通常很高,并加有较多的糊料,从而使染料的溶解较困难,所以印花色浆中常要加用较多的( ),如:尿素、酒精、溶解盐B等。
A.
润湿剂
B.
助溶剂
C.
渗透剂
【简答题】煤中的可燃组分有()()()(),有害成分主要是()
【多选题】煤中的可燃组分有( )
A.
O
B.
C
C.
S
D.
H
【简答题】某机字长 16 位, CPU 地址总线 18 位,数据总线 16 位,存储器按字编址, CPU 的控制信号线有: MREQ# (存储器访问请求,低电平有效), R/W# (读写控制,低电平为写信号,高电平为读信号)。试问: 若为该机配备 2K×16 位的 Cache ,每块 8 字节,采用 2 路组相联映象,那么,主存字块标记为( )位,组地址为( )位,组内地址为( )位;若主存地址为 ...
【单选题】某计算机存储器按照字节编址,采用小端方式存储数据,假定编译器规定int和short型长度分别为32位和16位,并且数据按照边界对齐存储。 某C语言的程序段如下: struct { int a; char b; short c; } record; record.a = 273; 若record变量的首地址为0xC008,则地址0xC008的内容以及record.c的地址分别为:
A.
0x00 、0xC00D
B.
0x00 、0xC00E
C.
0x11 、0xC00D
D.
0x11 、 0xC00E
【多选题】下列属于繁殖期杀菌剂的药物是
A.
氯霉素
B.
头孢菌素
C.
氨曲南
D.
四环素
E.
磺胺嘧啶
【简答题】煤中的可燃组分有 ,有害成分主要有 。
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