下列哪项不是初级卫生保健的工作内容
A．预防疾病B．增进健康C．及时治疗D．康复防残E．制定医疗卫生政策和法规
参考答案：E
Assume a discrete distribution for the number of possible sunny days in Provo, Utah during the week of April 20 through April 26. For this discrete distribution, p(x)=0 when x cannot occur, or p(x)＞0 if it can. Based on this information, what is the probability of it being surely on 5 days and on 10 days during the week5 Days of Sunshine 10 Days of Sunshine（）①A. A positive value Infinite ②B. Zero Infinite ③C. A positive value Zero
A. ①
B. ②
C. ③
E1线路是一种以时分多路复用技术为基础的传输技术，其有效数据率（扣除开销后的数据率）约为（）Mb/s。
A.1.34
B.1.544
C.1.92
D.2.048
