皮皮学,免费搜题
登录
搜题
【简答题】
Paul and I live in the same building. His room is on the sixth floor but mine is on the fifth. He’s very careless and sometimes he gets into trouble. Last Friday afternoon the young man and his friends went to spend the weekend on a wild island. They could swim, fish, play the guitar and sleep in the quiet place at night. They enjoyed themselves there and could do anything they wanted. On the third morning they decided to get back to the land. But their boat hit a rock and soon went down. With the villagers’ help, they swam to the bank. Luckily none of them was hurt. They took a taxi and half an hour later they arrived at our town, but it was two in the night. The young man was hungry and thirsty. He wished to get home as soon as possible. Something was wrong with the lift, so he had to go up the stairs. He stopped by my door and brought out a key. Of course he could not open the door. Half an hour passed but he failed. He became angry and shouted, “I’ll cut you down with a knife!” The noise woke me up and I opened the door. I understood at once what was happening and said, “You’re trying to open a wrong door, Paul!” “Sorry, I can’t agree with you, Charlie!” said the young man, “It’s my room. You’ve entered it by mistake!” 小题1: Paul and his friends enjoyed themselves on the island because ______. A.It was very quiet there B.there were many fish there C.they could forget all the trouble D.they could do what they wanted 小题2: Paul couldn’t open the door because ______. A.it wasn’t his room B.he couldn’t find the right key C.he didn’t find the keyhole D.he was too hungry to do it 小题3: Charlie opened the door to ______. A.help Paul B.stop Paul making the noise C.see what happened outside D.call the police station 小题4: Which of the following is WRONG? A.Paul thought he did right. B.Paul didn’t know where he lived. C.Paul stopped by a door on the fifth floor. D.Paul thought he had reached the sixth
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【多选题】最小相位系统的特点是 ( )
A.
在幅频特性相同的一类系统中,相位移最小,且幅频特性的斜率和相频特性的角度之间具有内在的关系。
B.
在幅频特性相同的一类系统中,相位移最大。
C.
在幅频特性相同的一类系统中,幅频特性的斜率与相频特性的角度之间没有关系。
D.
在幅频特性相同的一类系统中,相位移最小。
【判断题】软件危机的主要表现是软件需求增加,软件价格上升。
A.
正确
B.
错误
【单选题】提起行政诉讼的必备条件不包括( )。
A.
有明确的被告
B.
有具体的诉讼请求
C.
原告是完全民事行为能力人
D.
有具体的事实根据
【多选题】最小相位系统的特点是( )。
A.
在幅频特性相同的一类系统中,相位移最小。
B.
在幅频特性相同的一类系统中,相位移最大。
C.
在幅频特性相同的一类系统中,幅频特性的斜率与相频特性的角度之间没有关系。
D.
在幅频特性相同的一类系统中,相位移最小,且幅频特性的斜率和相频特性的角度之间具有内在的关系。
【单选题】最小相位系统的特点是()
A.
在右半平面有零点
B.
在右半平面有极点
C.
在右半平面有没有极点
D.
在右半平面有没有零点和极点
【单选题】在如图所示电路中,若去掉C E ,则下列说法正确的是:( )。
A.
Q点不变
B.
A V 不变
C.
R i 不变
D.
通频带不变
【多选题】下列关于非最小相位系统的说法,正确的是()
A.
具有非最小相位传递函数的系统称为非最小相位系统
B.
非最小传递函数全部极点均位于s平面的左半部
C.
非最小传递函数有一个或者多个开环零点或开环极点落在右半s平面上
D.
非最小相位系统的L(ω)特性和φ(ω)特性之间不具有一一对应关系
【多选题】最小相位系统的特点是( )
A.
在幅频特性相同的一类系统中,相位移最小,且幅频特性的斜率和相频特性的角度之间具有内在的关系。
B.
在幅频特性相同的一类系统中,相位移最小。
C.
在幅频特性相同的一类系统中,相位移最大。
D.
在幅频特性相同的一类系统中,幅频特性的斜率与相频特性的角度之间没有关系。
【单选题】螺栓的公称尺寸M 10*1.25-11T,其中“11T”代表()
A.
螺栓直径
B.
螺栓类型
C.
螺栓强度
【单选题】螺栓的公称尺寸M10 x 1.25 - 11T,其中11T代表
A.
螺栓直径
B.
螺纹类型
C.
螺栓强度
相关题目: