凸极式同步发电机,出口发生三相短路,暂态过程中定子、转子各出现哪些电流分量
参考答案:
搭配句子。(15分)
小题1:Is there a computer in her room?
小题2:Where are your friends from?
小题3:Where is the library?
小题4:Are the classrooms next to the library?
小题5:Are there any flowers in the office?
脐带内有()。
A.两条动脉,一条静脉
B.两条动脉,两条静脉
C.两条静脉,一条动脉
D.一条动脉,一条静脉
E.一条动脉,几条静脉