把能够阻塞血管腔的异常物质称为
A．白色血栓B．混合血栓C．红色血栓D．透明血栓E．血栓栓塞
参考答案：C
38.____________in 1914____________the First World War broke out?
39.
A．Was that, that
B．Was that, when
C．Was it. that
D．Was it, when
从接入的角度分，Cable Modem可以分为( )和( )，
