十二经脉的循行走向错误的是 A．手三阴经从头走手 B．足三阳经从头走足 C．足三

选词填空10分

People go to work in    小题1:   ways. Some people go to work on      小题2:    because they live           小题3:         their work places. Some people go to work by bike      小题4:      they live farther away, or they like     小题5:       bikes. They think it is    小题6:      for their health. Today more people have private(私人的)cars,so they can go to work by     小题7:         . In the south of China, many people even go to work bv         小题8:         because water is around their      小题9:     Will people go to work by plane? I     小题10:         so, if necessary. 

—You were out when I dropped in at your house.

—Oh,I    for a friend from England at the airport.

A．was waiting

B．had waited

C．am waiting

D．have waited

企业管理的二重性是（）。

A.科技性

B.艺术性

C.自然属性

D.社会属性

E.生态属性

工艺灭火，对压力容器、设备进行开发导流时，要准确观察和掌握流速和储量，防止静电引起燃烧或造成()产生回火爆炸。

（A）正压 

（B）负压 

（C）高压 

（D）底压

在Y，d11接线的变压器低压侧发生两相短路时，星形侧的某一相电流等于其它两相短路电流的2倍。