导致支气管平滑肌舒张的肾上腺素能受体为（）。
A.α受体
B.β受体
C.β受体
D.M受体
E.N1受体
参考答案：C
Was it in 1802 when he discovered his hearing problem _____ Beethoven realized that his
future ______ in composing music? [ ]
A. that; lay
B. when; lay
C. which; laid
D. that; laid
眩晕属肝阳上亢者，其最主要表现是
A．急躁易怒，口苦口干
B．头目胀痛，舌红苔黄
C．耳鸣耳聋，噩梦纷纭
D．腰膝酸软，头重脚轻
