市场机会调查主要有以下内容有（）。A.市场机会吸引力的调查 B.产品生命周期调查 C

当你遇到下面这些问题时，你会怎么解决呢？请对以下问题和解决办法给予合理的配对。

Problems:

小题1:Some boys are swimming in the river without permission.

小题2:Sometimes you just get so angry about something.

小题3:You cheat(作弊) at school because you are afraid of failing the exam.

小题4:Someone in our district often wastes water.

小题5:You like to play computer games and spend too much time on them.

Solutions:

A．Work harder at your lessons .If you have problems at school, just turn to your teachers

B．Tell them to leave the river quickly. It is dangerous.

C．Make a time table and reduce the time on computer games little by little.

D．Use your pen to tell your feelings. Write down why you are angry or draw it on a paperE. Put up some posters to ask him or her to save water.

物流系统中存在着哪些制约关系？

轨道电路的道岔跳线应采用（）跳线。

有关经济增长的理论模型主要有哪些？

有符号数AX除以2的指令是（）

A.SHR AX，1

B.SAR AX，1

C.ROR AX，1

D.RCR AX，1