皮皮学，免费搜题
登录
搜题
【单选题】
当滑动门全部关闭后，所有“关闭锁紧”信号丢失或信号系统无法确认安全门是否锁闭而不能发车时，列车司机或站务人员在就地控制进行什么操作？A.
现场控制
B.
手动控制
C.
紧急控制
D.
互锁解除
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】---He's already been back from the USA, ___________? ---___________. He is having fun with his son at home these days. A.hasn't he; No B.isn't he; Yes C.hasn't he; Yes D.isn't he; No
A.
.hasn't he; No
B.
.isn't he; Yes
C.
.hasn't he; Yes
D.
isn't he; No
【简答题】莲的果实为______果，埋于海绵质的______内。
【单选题】若想用uchar代换程序中的unsigned char则所使用的语句为：;
A.
#define uchar unsigned char
B.
#define uchar unsigned char;
C.
#define unchar unsinged char
D.
#define unchar unsigned char
【单选题】—Ben hasn't been to such a beautiful place before, has he? —______. [ ]
A.
Yes, he hasn't
B.
Yes, he has
C.
No, he haven't
D.
No, he has
相关题目：