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 ?（

题目

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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相似问题和答案

第1题：

Lisa: You look great. Any good news?

Alex: I just came back from my vacation.

Lisa: Wow, ! Maybe I should take a vacation,_________too.

A． I didn't see it

B． good for you

C． I didn't find it

D． hard to believe

正确答案：D
Lisa对Alex：“你看上去真不错。是不是有什么好消息?”Alex回答：“我刚度假回来。”所以选项A(真不敢相信)符合交际语境。选项A、选项B和选项C不合逻辑。

第2题：

— ______— Oh, it's a piece of cake、I love writing.

A、Do you like the writing class

B、How do you feel about your writing class

C、have another piece of cake

D、Could you help me

参考答案：B

第3题：

Lisa is () the travel arrangements.

A.make

B.making

C.taking

参考答案：B

第4题：

Lisa: May I use your computer this afternoon?

Cathy: I'm sorry, but I have to finish typing this term paper today.

Lisa: __________.

A、Thank you just the same

B、Do as you please

C、It doesn't matter

D、Never mind

参考答案：A

第5题：

电子邮箱为lisa_White@sina.com.cn,其中lisa_White代表邮件服务器。()

此题为判断题(对，错)。

参考答案：错

第6题：

30． Who found a book?

A． John．

B．Mary．

C．Lisa．

D．Mike．

正确答案：A
30.A【解析】由第一则启事可知John捡到一本书．

第7题：

Memo writing is similar to letter writing.()

此题为判断题(对，错)。

参考答案：正确

第8题：

Rose: Hi, Lisa. What's wrong with you?______.

Lisa: No, I don't. I've got the flu.

正确答案：F

第9题：

Lisa has three ________.

A、brother-in-law

B、brothers-in-law

C、brother-in-laws

D、brothers-in-laws

参考答案：A

第10题：

某数据库表中有个一Name字段，查询Name为Mary和Lisa的记录的准则可以设置为（）。

A.In（"Mary"，"Lisa"）

B.Like"Mary"AndLike""Lisa"

C.Like（"Mary"，"Lisa"）

D."Mary"And"Lisa"

正确答案：A
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lisa is writing̳

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