碱中毒已发生手足抽搐时因为
A. 低钾
B. 低氯
C. 低钙
D. 高钾
E. 高钠
NoticeThe conference room 1 ,but we need your help to 2listed below.Please keep the conference room clean and take away all your 3after themeeting. Turn off the lights,the computers,and so on.In addition, 4. Make sure that all the rules mentioned above are strictly followed when you leave. 5.XXXOfficeJune 20th, 2019
设fp是某文件指针,在C语言中,当fp指向文件末尾时,函数feof(fp)的返回值是( )。
A. 0
B. null
C. -1
D. 非零值
在C语言中,FILE类型由系统定义,保存在( )头文件中。
A. stdio.h
B. math.h
C. string.h
D. fstdio.h