问题 单项选择题

下列关于数组特征的描述中不正确的是( )。

A.数组是一种变量,由规则有序结构中具有同一类型的值的集合构成

B.在VBA中不允许隐式说明数组

C.Dim astrNew Array(20)AsString这条语句产生有20个元素的数组,每个元素为一个变长的字符串变量,且第一个元素从1开始

D.Dim astrNew Array(1 To 20)As String这条语句产生有20个元素的数组

答案

参考答案:C

选择题
阅读理解

阅读理解。

    The more we do a thing, the more we tend to like doing it; and if we do not continue to do it, we feel

uncomfortable. This is called the force of habits, and the force of habits should be fought against.

     Habits, whether good or bad, are gradually formed. When a person does a certain thing, he is driven

by some unseen force to do the same thing repeatedly, then a habit is formed. Once a habit is formed, it

is difficult, and sometimes impossible, to get rid of. It is therefore very important that we should pay great

attention to the formation of habits. Children often form bad habits, some of which remain with them as

long as they live. Older persons also form bad habits as long as they live, and sometimes become ruined

by them.

    There are other habits which, when formed in early life, are of great help. Many successful men say

that much of their success has something to do with certain habits in early life, such as early rising, honesty

and so on. 

    Among the habits which children should not form are laziness, lying, stealing and so on. They are all

easily formed habits. Unfortunately, older persons often form bad habits, which should have been avoided.

    We should keep from all these bad habits, and try to form such habits as will be good for others and

ourselves. Remember: Habits cure habits.

1. Generally speaking, it is difficult for one to _____. [ ]

A. form good habits and easy for him to form bad habits

B. form bad habits and easy for him to form good habits

C. get rid of bad habits and easy for him to form good habits

D. get rid of good habits and easy for him to form bad habits

2. We should pay much attention to the formation of habits because _____. [ ]

A. habits are of great help to everyone of us

B. a man can never get rid of the bad habits

C. we are forced to do them repeatedly

D. it's hard and even not possible to get them away

3. _____ are formed little by little. [ ]

A. Good habits

B. Bad habits

C. Both good habits and bad habits

D. Neither good habits nor bad habits

4. According to the passage, early rising or honesty _____. [ ]

A. is such a habit as should not have been got rid of

B. is an early formed habit that is with one as long as he lives

C. is such a habit as will be kept from

D. is a habit that has something to do with success