【单选题】混凝土施工缝宜留在结构受 较小且便于施工的部位
【单选题】what is the man's problem?
B.
He failed his history exam.
【单选题】What’s wrong with the man?
【简答题】混凝土施工缝宜留在结构受( )较小且便于施工的部位。
【简答题】听材料,回答问题。 1. What's wrong with Jack? A. He has a headache. B. He has a sore throat. C. He has a stomachache. 2. How long has he been like this? A. For two hours. B. For two days. C. For only one hour....
【判断题】标的物提存后,毁损、灭失的风险由债权人承担。
【简答题】标的物提存后,其毁损、灭失的风险由债权人承担。提存期间,标的物的孳息归债权人所有,提存费用由债务人负担。判断对错
【简答题】设外部有一脉冲信号源PLUS,要求用8253—5的计数器0对该信号源连续计数,当计数器计为0时向CPU发出中断请求。 1、画出8253-5的CLK0、GATE0和OUT0的信号连接图。 2、若该芯片的端口地址为40H~43H,计数初值为1234H,写出该计数器工作在方式2按二进制计数的初始化程序。 3、若计数初值为12345H,在上述基础上增加计数器1如何连接以实现计数。