股价移动的规律可以概括为“暂时平衡→打破平衡→确立趋势→趋势延续→打破趋势→找到新的平衡”。 ( )
参考答案：错
Don’t telephone me at 8 a.m. tomorrow — I ________ a meeting.
A．am having
B．will be having
C．am about to have
D．have had
肺的换气是指肺泡与血液间进行氧气和二氧化碳的交换______．
