Class File, which i useful for retrieving information about files or directories form disk.（）

听力原文：Which file do you need？

(A) Yes, but a little later.

(B) I needed it, but I can wait.

(C) The Astra File in the top drawer.

(28)

A．

B．

C．

Which element is NOT part of a microkemel？

A．basic I/O

B．a file system

C．IPC mechanisms

D．memory management

While I was in the university, I learned taking a photo, () is very useful now for me.

A. it

B. which

C. that

D. what

下面程序的结果是 ______。 #include＜iostream.h＞ class A{ public: virtual void fun()=0{}; }; class B:public A{ public: void fun () {cout＜＜ "new file" ;} }; class C: public A{ public: void fun (){cout＜＜"open file"＜＜ " " } }; class D: public A{ public: void fun () {cout＜＜ "save file\n" ;} }; void main() { A a,*p; B b; C c; D d; p=&c; p-＞fun (); p=&b; p-＞fun (); p=&d; p-＞fun(); }

A．new file open file save file

B．new file new file new file

C．编译出错

D．open file new file save file

A．it

B．which

C．that

D．what

听力原文：M：Hi，Kate! Which Class are you in？

W：Hi，Tom! I'm in Class Four，Grade Six．

Q：Which Class is Kate in？

(24)

A．Six.

B．Five.

C．Four.

I am inchargeof the class which was incharge of my wife.

A.不填；theB.不填；不填

C. the;不填D. the; the

Which of the following is true about retrieving information？ ______

A．Elaborate rehearsal contributes to information retrieval.

B．The most efficient way of retrieving information is to assign semantic meaning to the information.

C．It's impossible to retrieve forgotten information without picture prompts.

D．Encoding information is more efficient than chunking it.