【单选题】—Sit down, Please. —_______. [ ]
【判断题】当基坑有支护结构围护时,一般仅在基坑内降低地下水位。()
【判断题】支护结构选型应保证基坑围护结构构件不应超出基坑用地范围。()
【单选题】—Sit down, please. — _______. [ ]
【判断题】在三相对称电路中,总的有功功率等于线电压,线电流的有效值和功率因数三者相乘积的倍。( )
【判断题】在三相对称电路中,总的有功功率等于线电压、线电流和功率因数三者乘积的倍。()
【判断题】有支护结构围护的基坑,由于围护体的隔水效果较好,且隔水帷幕伸入透水性差的土层一定深度,在这种情况下的降水类似盆中抽水。()
【判断题】A typical Sunday Roast usually consists of roasted meat, roast potato or mashed potato, with accompaniments such as Yorkshire pudding, stuffing, vegetables and gravy.