由少量地塞米松与甘油等制成的15克包装的皮肤用药
参考答案：30043200
—May I speak to the headmaster?
—He’s not here．He _______ Beijing．Can I take a message?
A．has gone to
B．has been to
C．has gone
D．has been
射频同轴电缆（RF507/8Z）的最小弯曲半径：（）
A、70mm
B、120mm
C、200mm
D、300mm
