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()。