有下列程序段： char ch;int k； ch='a'；k=12； printf("%c,%d,",ch,ch,k)； printf("k=%d\n",k)； 已知字符a的ASCII十进制代码为97，则执行上述程序段后输出结果是()。

e notfound‘. The administrator then uses the ping command and finds that the default gateway cannotbe pinged.At which of the following layers does the problem MOST likely reside？（）

A.Layer 1

B.Layer 4

C.Layer 5

D.Layer 7

A. If the file exists it will be opened for editing. If the file does not exist an error message will be displayed.

B. If the file exists it will be opened for editing. If the file does not exist a new file with the name file.out will be created and opened for editing.

C. If the file exists an error message will be displayed. If the file does not exist a new file with the name file.out will be created and opened for editing.

D. If the file exists the operator will be asked whether to open the file or overwrite the file. If the file does not exist a new file with the name file.out will be created and opened for editing.

Which of the following does NOT belong to the Indo-European family？

A．French.

B．Bengali.

C．Vietnamese.

D．Polish.

Which of the following adjectives does NOT describe the mother？

A．Irritable.

B．Remorseful.

C．Amiable.

D．Discontented.

Which of the following adjectives does NOT describe "she"？

A．Meticulous.

B．Flagging.

C．Melancholy.

D．Irritable.

Which of the following does Belfast chiefly export？

A．Soap.

B．Grain.

C．Steel.

D．Tobacco.

Which of the following does not contain a prefix of numbers？

A.Automobile

B.Decade

C.Trilingual

D.Bilateral

Which of the following adjectives does NOT describe the mother？

A．Irritable.

B．Remorseful.

C．Amiable.

D．Discontented.

Which of the following adjectives does NOT describe Victoria？

A．Moral.

B．Modest.

C．Beautiful.

D．Intellectual.

Which of the following adjectives does not describe Dolly？

A．Fatigued.

B．Decent.

C．Anguished.

D．Grave.