【单选题】关于二次硬化型超高强度钢,下列说法正确的是?
【简答题】Who was it _______ spoke first at the meeting?
【单选题】关于二次硬化型超高强度钢,下列说法正确的是?
【单选题】I don’t remember who spoke first that night, but all of us the same opinion
【单选题】关于二次硬化型超高强度钢,下列说法正确的是?
【简答题】Just then,another man, _______ behind the first,spoke up,“Who are you?”. A.sitting B.to sit C.sat D.having sat
【单选题】关于二次硬化型超高强度钢,下列说法正确的是?