皮皮学，免费搜题
登录
搜题
【单选题】
假设在P1口接矩阵键盘,采用逐行扫描判断是否有键按下,如果P1.3、P1.2、P1.1、P1.0为1110,P1.7、P1.6、P1.5、P1.4是1011,那么是 键按下A.
s2
B.
s8
C.
s10
D.
s16
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
【单选题】By Christmas______I in this office for ten years.
A.
will work
B.
will be working
C.
will have been working
D.
will have worked
【单选题】By Christmas_____I in this office for ten years.
A.
will work
B.
will he working
C.
will have been working
D.
will have worked
【单选题】S700K型电动转辙机上下两检测杆无张嘴和左右偏移现象,检测杆头部的叉形连接头销孔的磨损旷量不大于( ):
A.
0.5mm
B.
1mm
C.
1.5mm
D.
2mm
【简答题】开始从事; 发动,发起; 投放市场 v. ____ch
【单选题】He to keep this book for a month.
A.
will allow
B.
will be allowed
C.
allows
D.
allowed
相关题目：
参考解析：
知识点：
题目纠错 0
发布
