研磨体平均球径过大，使物料流速快，易造成出磨物料跑粗。
参考答案：对
哈希函数与数字签名算法相结合，提供对于消息的（）检验。
The nurse is preparing to care for a client diagnosed with catatonic schizophrenia. In anticipation of this client's arrival, what should the nurse do
A．Notify security.
B．Prepare a magnesium sulfate drip.
C．Place a specialty mattress overlay on the bed.
D．Communicate the client's nothing-by-mouth status to the dietary department.
