皮皮学，免费搜题
登录
搜题
【判断题】
安全，是指预知人类在生产和生活各个领域存在的固有的或潜在的危险，并且为消除这些危险所采取的各种方法和手段的总称。A.
正确
B.
错误
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
【单选题】网络退票系统运行时间发送业务的窗口关闭时间为（），接收业务的窗口关闭时间为（）。
A.
15：30；15：40
B.
16：00；16：30
C.
16：30；17：00
D.
15：40；15：50
【单选题】This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. Both the dialogues and questions will be sp...
A.
On a bus.
B.
On a train.
C.
On a plane.
D.
In a car.
【单选题】以下程序段,while循环执行的次数是( ) int k=0; while( k == 1) k++;
A.
无限次
B.
有语法错，不能执行
C.
一次也不执行
D.
执行1次
【单选题】Part A Directions: You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer ― A, B, C or D, and mark it in your test booklet. You...
A.
At a bus station.
B.
In a hotel.
C.
In hospital.
D.
In a bank.
【单选题】Section B: This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. Both the dialogues and questions...
A.
She didn’t know the time.
B.
She forgot her class.
C.
She didn’t catch the bus.
D.
The bus was late.
【简答题】网络退票发送业务的窗口关闭时间:____;接收业务的窗口关闭时间:____。A. 15:40;15:50 B. 15:30;15:40 C. 15:50;16:00 D. 16:00;16:30
【单选题】Directions: This s e ction is to test your abi li ty to give proper respons e . There are 5 recorded questions in it. After each question, there is a pause. The questions wi ll be read twice . When yo...
A.
I'll go to class at 8: 00
B.
He’ll be at home at 12: 00
C.
The bus will come soon .
D.
At 9: 00 , isn’t it?
相关题目：