对压电式加速度传感器,希望其固有频率()。
A.接近零
B.尽量低些
C.尽量高些
D.任意
参考答案:C
当眼底出现哪种表现时,常意味着患者出现了恶性高血压()
A.动脉呈铜丝状
B.动脉呈银丝状
C.视网膜出血
D.视 * * 水肿
E.视网膜硬性渗出
In relation to the Botswana legal system, explain and distinguish between the various ways of classifying law. (10 marks)