把1:100000改写成线段比例尺为______.
因为100000厘米=1千米,
则1:100000改写成线段比例尺为:
1厘米代表实际距离1千米,即:
.
故答案为:.
已知直角三角形两条直角边的长是3和4,则其内切圆的半径是______.
IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the (71) of origin of a message, multicasting initially sends just one (72) and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby (73) the bandwidth consumed. Network performance is significantly (74) because it isn’t bogged down with the processing and transmission of several large data fries; each receiving computer doesn’t have to (75) the transmitting server for the file.
A. droppedB. proved C. improvedD. upgraded