钩体病感染中毒型的临床特点有（）
A.发热
B.头痛
C.肌肉疼痛
D.眼结膜充血
E.全身浅表淋巴结肿大
参考答案：A, B, C, D, E
— People should start using public transport instead of using their private cars.
— _________ . The streets in Shandong are too crowded as it is in Jinan.
A．All right
B．Exactly
C．Go ahead
D．Fine
硅二极管能起整流作用，是因为它具有（）。
