若母线电压低于85%额定电压而又无法调高时，发电厂可执行调度机构认可的保厂用电措施。
参考答案：对
―What about 10 o’clock tomorrow morning?
―I’m afraid I can’t make it. I _________ then.
A．am going to take an exam
B．am taking an exam
C．will be taking an exam
D．an to take an exam
物流基地
