皮皮学，免费搜题
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【多选题】
库存的作用有哪些?A.
能有效地缓解供需矛盾
B.
改善服务质量
C.
节省订货费用
D.
节省作业交换费用
E.
降低人员与设备的利用率
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
【简答题】编程:显示如下菜单 用户输入选项后,输出用户的选择结果。
【简答题】编写程序完成以下内容: 有如下菜单: ******** 1-加法 2-减法 ******** 请选择(1—2): 由用户输入选项,如果输入选项不符合要求,则给出提示并显示菜单,要求重新输入,直到用户输入选项符合要求。
【简答题】合力偶矩等于力偶系中各分力偶矩的________。
【单选题】Which one of these statements is true?
A.
Amygdala is responsible for focuing on positive information.
B.
The orbitofrontal cortex is responsible for behaving relatively properly.
C.
Temporoparietal juction in the left hemisphere is associated with inferences about other people's mental states.
D.
When it comes to reasoning about other people, funtion of MPFC (medial prefrontal cortex) is limited to determine other's mental states.
【简答题】为防止河水对边坡、坡脚和坡脚处地基不断的冲刷和淘刷。应设()。
【单选题】Which one of these statements is correct?
A.
Investors earn a return called a spread
B.
Dealers pay a fee, called the spread, to brokers
C.
Investors sell at the ask price
D.
Dealers buy at the bid price
E.
Brokers maintain an inventory of securities
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