用于制备静脉给药的中药注射剂，有效部位的含量应不低于总固体量的
A．25%B．50%C．70%D．85%E．90%以上
参考答案：D
当事人主观上无故意的违约事实，( )承担违约的法律责任。
A．应当
B．若造成损失
C．不应
D．不一定
The director had her assistant _____some hot dogs for the meeting. [ ]
A. picked up
B. picks up
C. pick up
D. picking up
