【单选题】-- Let us clean the classroom. --_____.
【单选题】Let ______ help the old man ______ the house. [ ]
【单选题】如图所示共阴极LED数码管电路符号,要使数码管显示1,abcdefg各输入端的状态应为()
【单选题】如图所示共阴极LED数码管电路符号,要使数码管显示6,abcdefg各输入端的状态应为()
【单选题】Let us clean the room, _____ ?
【简答题】Let us clean the classroom by ourselves, _______________ ?
【单选题】如图所示共阴极LED数码管电路符号,要使数码管显示9,abcdefg各输入端的状态应为()
【单选题】Let us go to clean the clean the classroom,__?
【单选题】如图所示共阴极LED数码管电路符号,要使数码管显示0,abcdefg各输入端的状态应为()