惊厥前伴剧烈头痛，可见于（）.
A.癫痫大发作
B.蛛网膜下腔出血
C.重度失水
D.脑出血
E.脑梗死
参考答案：B
—I don’t think he has found a job yet because I saw him at home just yesterday.
—______!
A．No problem
B．Maybe
C．Exactly
D．Good idea
集成运算放大器的内部电路一般有（）；（）、输出极和偏置电路构成。
