鼻唇沟上1/3与下2/3的交界处为()穴。
A.四白
B.迎香
C.人中
D.承泣
参考答案:C
创建流程JS代理对象是哪个()
A、varbpmclient=newbpmintegratE.utils.Client
B、varbpmclient=newbpmintegratE.utils.BPM
C、varbpmclient=newbpmintegratE.utils.BPMClient
D、varbpmclient=newbpmintegratE.BPMClient
阐述交流低压配电系统中交流基础电源应满足什么条件?