lisa is writing a formula to determine the number of elements in a list. she wants to ensure that a value is returned, even if the value her function is evaluating turns out to be a null string . which one of the following can she so to accomplish this ?（）A、use a defaule formula of 1 B、use @elements and add 1 to the total C、use the @count function instead of @elements D、use @texttotime to ensure that all strings arte converted to date-time values
lisa is writing a formula to determine the number of elements in a list. she wants to ensure that a value is returned, even if the value her function is evaluating turns out to be a null string . which one of the following can she so to accomplish this ?（）
- A、use a defaule formula of 1
- B、use @elements and add 1 to the total
- C、use the @count function instead of @elements
- D、use @texttotime to ensure that all strings arte converted to date-time values
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单选题lisa is writing a formula to determine the number of elements in a list. she wants to ensure that a value is returned, even if the value her function is evaluating turns out to be a null string . which one of the following can she so to accomplish this ?（）Ause a defaule formula of 1 Buse @elements and add 1 to the total Cuse the @count function instead of @elements Duse @texttotime to ensure that all strings arte converted to date-time values
问答题Practice 1 阅读下面的对话，根据其内容写一篇有关Robinson夫妇的周末的记叙文。 要求： 1. 所写短文应与对话相关内容意义相符，涵盖其要点； 2. 用你自己的语言表达，可改写对话中的句子，但不可照抄原句。 注意： 1. 词数80词左右，开头已为你写好； 2. 请将短文直接写在答题卡上。 Lisa: Excuse me, could I ask you some questions? Robinson: Of course. Lisa: I work for an advertising agency, and I’m doing some research. It’s for a new magazine for people like you. Robinson: People like me? What do you mean? Lisa: Well, people between 25 and 35 years old. Robinson: OK. Lisa: Right. Em, what do you do at the weekend? Robinson: Well, on Fridays my wife always goes to her exercise class. Then she visits friends. Lisa: Don’t you go out? Robinson: Not on Fridays. I never go out on Fridays. I stay at home and watch television. Lisa: And on Saturdays? Robinson: On Saturdays, my wife and I always go sailing together. Lisa: Really? Robinson: Em, we love it. We never miss it. And then in the evening we go out. Lisa: Where to? Robinson: Different places. We sometimes go and see friends. We sometimes go to the cinema or a restaurant. But we always go out on Saturday evenings. Lisa: I see. And now on Sunday, what happens on Sundays? Robinson: Nothing special. We often go for a walk, and 1 always cook a big Sunday lunch. Lisa: Oh! How often do you do the cooking? Robinson: Em, twice a week, three times a week. Lisa: Thank you very much. All I need now are your personal details: your name, your job, and so on. What’s your surname? Robinson: Robinson. Mr. Robinson never goes out on Fridays.