生物碱类药物含量测定时，为消除氢卤酸对滴定反应的不良影响可加入（）。A．硝酸B．醋酐C．冰醋酸D．醋

Why is small talk described as "non-threatening talk in a threatening situation"？

A．It is used to create a more friendly atmosphere and to avoid embarrassment.

B．It is used to show that one is enthusiastic and hospitable.

C．It is used by people to encourage those who are confronted with danger.

D．It is used by people to protect others in the threatening situation.

Why is small talk described as "non-threatening talk in a threatening situation"？

A．It is used by people to encourage those who are confronted with danger．

B．It is used to show that one is enthusiastic and hospitable

C．It is used to create a more friendly atmosphere and to avoid embarrassment．

D．It is used by people to protect others in the threatening situation．

A、a friendly meeting

B、a formal introduction

C、a little small talk

D、a serious talk

Why is small talk described as "non-threatening talk in a threatening situation"______.

A．It is used by people to encourage those who are confronted with danger.

B．It is used to show that one is enthusiastic and hospitable.

C．It is used to create a more friendly atmosphere and to avoid embarrassment.

D．It is used by people to protect others in the threatening situation.

A．keep up

B．proceed with

C．maintain

D．establish

A. meeting

B. talk

C. fair

D. move

What will the man probably do before the next meeting？

A．Write a synopsis of each book on the list

B．Make a list of books that he wants to read

C．Finish the art project on his computer

D．Prepare to talk with the professor

What can we infer about the situation？

A．The student will probably talk with his advisor before registration next term.

B．The professor believes that the student will probably not take her advice.

C．The date for changing the student's schedule has probably passed already.

D．The professor is probably the student's academic program advisor.

Before the meeting, a ______was held to verify information.

A．brief

B．briefing

C．briefly

D．briefed