对于一条食物链中,具有捕食关系的两种生物(消费者),若捕食者被大量捕杀后,则被捕食者在数量(纵坐标)上的变化与时间(横坐标)的关系是图中的( )
A.
B.
C.
D.
答案:C
关于脑出血患者的抢救,对于防止加重出血,以下哪项不正确
A.不宜长途运送B.不宜过多搬动C.保持大便通畅D.不宜用镇静药E.不宜将血压降得过低
Originally introduced by Netscape Communications, (66) are a general mechanism which HTTP Server side applications, such as CGI (67) , can use to both store and retrieve information on the HTTP (68) side of the connection. Basically, Cookies can be used to compensate for the (69) nature of HTTE The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based (70) .
A. fixedB. flexibleC. stableD. stateless