单元制锅炉多采用（）停炉。
A.滑参数
B.定参数
C.紧急
D.故障
参考答案：A
He called another girl, ______ was more suitable for the position.
A．he believed
B．who he believed
C．he believed she
D．whom he believed
男，78岁。1天前突然失语伴右上肢活动无力进行性加重，但意识清楚，脑脊液检查无异常。最可能的诊断是
A．短暂性脑缺血发作B．脑血栓形成C．脑栓塞D．脑出血E．蛛网膜下腔出血
