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国家开放大学 / 经济数学基础12

函数的驻点是（　）.

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经济数学基础12

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Nancy got a job as a secretary in a big company. She was going to work in the Sales Department. Monday was the first day she came to work. She was very excited and she arrived early at the office. She pushed the door open and was surprised to find a large bunch of fresh flowers on her desk. "Oh，how lovely! Somebody sent me flowers the very first day!" She thought happily. "But who could it be?" The day passed quickly and Nancy did everything well. And every Monday morning she came to her office，she would see a new bunch of flowers there. She still didn't know who sent these flowers. One Tuesday afternoon，she was asked to hand in a plan to the general manager's office. Her eyes suddenly fell on these words on a piece of paper: "Keep the secretaries in high spirits; Send a bunch of fresh flowers to each secretary's desk on Monday morning." 1. Nancy got a job___________A. in the Sales Department in a small companyB. in the Production Department in a small companyC. in the Sales Department in a big companyD. in the Production Department in a big company2. On her first day of work， she ______.A. was asked to hand in a plan to the general managerB. arrived early at the officeC. got a bunch of flowers from his boyfriendD. brought a bunch of flowers to the office3.Nacy got a bunch of fresh flowers _____A. only on the first day of work B. every dayC. every week D. every first of day of the month4. She when she saw the flowers on her desk.A. felt happy yet surprisedB. wanted to find out who did itC. felt worried as she didn't know who did itD. thought it must be her friend's joke5. Finally Nancy found that it was__ who sent flowers to the secretaries.A. the head of the department B. one of her male colleaguesC. the general manager D. one of her friends 大学英语（I）

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