皮皮学，免费搜题
登录
搜题
【单选题】
单相桥式整流电路如图 1 所示,变压器副边电压 u2 的波形如图 2 所示,设二极管均为理想元件,则 D1 两端的电压 uD1 的波形为图 3 中的()。A.
B.
C.
D.
D
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】For activity-based cost systems, activity costs are assigned to products in the proportion of the demand they place on activity resources.
A.
正确
B.
错误
【判断题】The process of using activity-based costs to help reduce and eliminate non-value-added activities is activity-based costing.
A.
正确
B.
错误
【判断题】Activity based costs are not the same as relevant cost for the purpose of short-run decision-making.
A.
正确
B.
错误
【判断题】The costs of introducing and maintaining an activity based costing system may exceed the benefits of such a costing system.
A.
正确
B.
错误
【判断题】In Activity Based Costing, a cost pool is a cost bucket in which costs related to a single activity measure are accumulated
A.
正确
B.
错误
【简答题】在好氧生物处理中,当溶解氧或营养成为限制因子时,菌胶团细菌和丝状细菌表现出 _______ 关系;在厌氧消化池内,在有硫酸盐存在的条件下,硫酸盐还原菌和甲烷菌表现出 _______ 关系;氧化塘中细菌和藻类的关系是 _______ ;青霉菌和革兰氏阳性菌的关系是 _______ 。
相关题目：