【多选题】【电梯法规】以下针对电梯施工单位资质等级描述正确的是()
B.
B级电梯维保资质的公司可从事额定速度不大于2.5m/s、额定载重量不大于5t的乘客电梯、载货电梯、液压电梯、杂物电梯,以及所有技术参数等级的自动人行道和自动扶梯
C.
C级维保资质的公司仅可从事额定速度不大于1.75m/s、额定载重量不大于3t的乘客电梯、载货电梯,以及所有技术参数等级的杂物电梯、自动人行道和提升高度不大于6m的自动扶梯
【简答题】_____ the English examination I would have gone to theconcert last Sunday. A. In spite of B. But for C.Because of D. As for
【简答题】小虎做一道计算题:某数乘8再减去13.小虎错把题目看成某数乘6再加3.没想到答案碰对了.那么某数是______.
【单选题】I have ______ English book but he has two English books.
【简答题】常用电器低压断路器(空气开关)的文字符号是____。
【判断题】TTL与非门电路参数中的扇出系数N0,是指该门电路能驱动同类门电路的数量。
【简答题】某计算程序编辑如图所示.当输入x=( )时,输出的y=3.
【简答题】补全对话。 A: Hello, sir, may I talk with you in English? B: __________. A: I have learned English at school for one year. I have very few chances to talk with the English-speaking people. So I want to pra...
【单选题】某钢铁联合企业拟建焦化生产线,吨焦耗新水不符合《焦化行业准入条件》的是( )。