起重设备的（）包括被吊物体的重量和使用的全部吊具的重量。
参考答案：安全负荷量
—I'm sorry I _______ my homework at home.
—That's all right. Don't forget _______ it to school this afternoon. [ ]
A. forget; to make
B. forget; to bring
C. left; to bring
D. left; to carry
胎儿窘迫
