题目: 时钟框母板的S4开关的用途。()A.全OFF时用于在B独立局上直接与ALM板通讯B.全OFF时用于通过SLT、ALM与主机通讯的环境下C.全ON时用于CKS直接与主机(MCC.通信的环境下D.在GSM系统中在全ON时有用 答案: 参考答案:A, B, C
题型:选择题 Because of H7N9 bird flu, all the chicken markets in Shanghai have been closed and won't open until further ________.A.sign B.symbolC.contact D.notice 查看答案