皮皮学，免费搜题
登录
搜题
【单选题】
8086/8088 在响应可屏蔽中断请求时( )A.
INTA 输出一个负脉冲，将中断类型码从 AD0 —— AD7 读入
B.
INTA 输出两个负脉冲，在第二个负脉冲时读取中断类型码
C.
INTA 输出一个负脉冲后，进行一次 I/O 读周期，读取中断类型码
D.
INTA 输出一个负脉冲后，同时提供 I/O 读控制信号，读中断类型码
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【多选题】S7 1200常用的OB块有
A.
循环调用OB
B.
启动OB
C.
延时中断OB
D.
循环中断OB
E.
硬件中断OB
F.
时间错误中断OB
G.
诊断错误中断OB
【单选题】What does the author conclude.
A.
He is better than his wife at taking care of children.
B.
A child prefers to stay with his/her father.
C.
A man can take good care of children if he gets the experience.
D.
A child prefers to stay with his/her mother.
【单选题】40 What does the author conclude? A He is better than his wife at taking care of children.
B.
A child prefers to stay with his/her father.
C.
A man can take good care of children if he gets the experience
D.
A child prefers to stay with his/her mother.
【简答题】句型转换。 1. He is much taller than his brother.(改为同义句) He is taller_____ _____than his brother. 2. They often come here now.(改为否定句) They_____come here_____. 3. She felt so tired that she couldn't walk fo...
【简答题】判断下列式子是否可用平方差公式 (1)(a+2b)(-a-2b ) ( ) (2) (a-2b)(2b-a) ( ) (3) (2a+b)(b+2a) ( ) (4)- (a-3b)(a+3b) ( ) (5)(-2x+3y)(3y-2x)( )
相关题目：
参考解析：
知识点：
题目纠错 0
发布
