皮皮学，免费搜题
登录
搜题
【单选题】
Alison is a traveling salesperson who drives many miles each day to visit her clients. She gets utility from the purchase of gasoline, but she doesn't care which brand of gasoline she consumes. Suppose she has a daily budget of $100 for gasoline and can purchase from two companies, PB and Noxxe. Today she notices that the price of a gallon of gas at PB is $2.50 and the price of a gallon of gas at Noxxe is $3.33. What is her optimal purchase of gas?A.
. 40 gallons at PB and 30 gallons at Noxxe
B.
. none at PB and 30 gallons at Noxxe
C.
. 20 gallons at PB and 15 gallons at Noxxe
D.
. 40 gallons at PB and none at Noxxe
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】题图是一个不完整的三相异步电动机正反转控制电路，该电路应具有短路、过载和正转、反转限位保护功能，主电路电压为380V，控制电器的额定电压为200V。请画出完整电路，并指出图中文字符号所代表的电器的名称。
【简答题】领导者的素质要求包括政治思想素质、 素质、 素质、智能素质、身体和心理素质多个方面。