对于大起重量起重机，钢丝绳偏斜角应控制的小些，可取A≤（）。
A、35°~40°
B、5°~6°
C、4°~5°
D、2°
参考答案：C
I ______ my son _____ a doctor, but he wasn’t good enough at science.
A．hoped, became
B．hoped, could become
C．had hoped, would become
D．had hoped, would have become
取消换卡只限于当天办理过换卡且未即时制卡的情况。（）
