题目内容

以下四种说法中，正确的是________。（第7章指针程序设计）

A. chara="china";等价于chara;a="china";
B. charstr[]={"china"};等价于charstr[10];str[]={"china"};
C. chars="china";等价于char*s;s="china";
D. chara[4]="abc",b[4]="abc";等价于chara[4]=b[4]="abc";

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有数组定义语句如下：staticintarr[20][30]; 表示数组元素arr[9][0]的地址，除可以使用&arr[9][0]的表示形式之外，还可以使用其他的表示形式。在以下表示形式中错误的是______。（第7章指针程序设计）

A. arr[9]
B. arr+9*30
C. *(arr+9)
D. &arr[0][0]+9*30

语句chars="china";与chars;s="china";功能等价。

A. 对
B. 错

有数组定义语句如下：（第7章指针程序设计）static int a[20][30];数组元素a[9][0]的地址既可表示为&arr[9][0]，也可以表示为arr+9*30 。

A. 对
B. 错

Listen to an announcement twice and during the second listening, put back themissing words in the blanks.[音频]Ladies and gentlemen, the captain has turned on the Fasten Seat Belt sign. Please take your 1_ and fasten your seat belt.At this time, we request that all cell phones be turned off for the 2 duration of the flight. We request that all other 3 _ devices be turned off until we fly above 10,000 feet. We will notify you when it is 4 _ to use such devices.We 5 you that this is a non-smoking flight. Smoking is not 6 on the entire aircraft, including the lavatories.If you have any 7 _ during our flight today, please don’t 8 ___ to ask one of our flight attendants. Thank you.