协调控制系统采用前馈回路，有利于提高机组对汽压的适应性。（）
参考答案：错
溃疡性睑缘炎的并发症包括()
A．睫毛乱生
B．睑外翻
C．泪溢
D．下睑湿疹
E．以上均是
Admiral Cervera knew he was being ordered to certain destruction but felt compelled to obey. He chose the morning of July 3 for a gallant escape attempt.
A. daring B. futile C. critical D. fruitful
