On seeing the snake，the man sprang up（）a start.

（6）-（）

Stuart：Hello.Can I help you？Karen：Yes.I hope so.I would like to register for Comp Lit 287.Stuart：I’m sorry.（1）And also，students are supposed to register through the touch-tone registration system.Karen：I know that.I already tried to register by phone，（2）Stuart：That’s because it’s full.Karen：But I’m a new student here.I thought maybe there was some way I could get into the class.Stuart：Well，I could put you on a waiting list.But that doesn’t guarantee you will get into the class.（3）Karen：My name is Karen HuangStuart：Alright.And what is your major？Karen：I’m a comparative literature major.Stuart：Wait a minute.（4）Karen：Yes，that’s right.And Professor Cohen told me I need to take Comp Lit 287.Stuart：The university computer system saves extra places，in class 287 for Comp Lit studentsKaren：Even if the class is full？Stuart：That’s right.A.You're a Comp Lit major？B.What is your name？C.but the system won’t let me.D.But that class is already full.

Imagery may affect the activities of primary visual brain areas from top tobottom，while visual perception mainly processes information in primary visual cortex from bottom to top，and then enters other brain areas.（）

What are the stages of language development in vygowski’s theory.（）

（3）-（）

（10）-（）

The reasons why Wason’s Selection Task is difficult include（）.

The semantic content of a concept can be re-expressed by a combination of other and different concepts，which may vary from one language or culture toanother.（）

Specific concept categories are mainly composed in the following two ways（）