Unfortunately, the new swine flu virus can be transmitted between humans. It is not clear yet how easily it is transmitted, nor how it is transmitted. Almost surely it is transmitted by sneezing and coughing, and by skin-to-skin contact with an infected person.
How is the swine flu virus transmitted according to the passage

A:It is very easily transmitted from person to person. B:It is not quite sure how it is transmitted yet. C:It is surely transmitted by sneezing or coughing. D:It is surely transmitted by skin-to-skin contact.

Flow control is a function that prevents network congestion by ensuring that (66) do not over-whelm (67) with data. There are three commonly used methods for handling network congestion. (68) is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (69) are used by receiving devices to help prevent their buffers from overflowing. (70) is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

A:transmitting devices B:transmitted devices C:receiving devices D:received devices

Flow control is a function that prevents network congestion by ensuring that (66) do not over-whelm (67) with data. There are three commonly used methods for handling network congestion. (68) is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (69) are used by receiving devices to help prevent their buffers from overflowing. (70) is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

A:transmitting devices B:transmitted devices C:receiving devices D:received devices

Flow control is a function that prevents network congestion by ensuring that (66) do not over-whelm (67) with data. There are three commonly used methods for handling network congestion. (68) is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (69) are used by receiving devices to help prevent their buffers from overflowing. (70) is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

A:transmitting devices B:transmitted devices C:receiving devices D:received devices

Flow control is a function that prevents network congestion by ensuring that (66) do not over-whelm (67) with data. There are three commonly used methods for handling network congestion. (68) is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (69) are used by receiving devices to help prevent their buffers from overflowing. (70) is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

A:.transmitting devices B:transmitted devices C:receiving devices D:received devices

Flow control is a function that prevents network congestion by ensuring that (59) do not overwhelm (60) with data.
There are three commonly used methods for handling network congestion. (61) is used by network devices to temporarily store bursts of excess data in memory until they can be processed (62) are used by receiving devices to help prevent their buffers from overflowing. (63) is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.

A:transmitting devices B:transmitted devices C:receiving devices D:received devices

Flow control is a function that prevents network congestion by ensuring that (59) do not overwhelm (60) with data.
There are three commonly used methods for handling network congestion. (61) is used by network devices to temporarily store bursts of excess data in memory until they can be processed (62) are used by receiving devices to help prevent their buffers from overflowing. (63) is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.

A:transmitting devices B:transmitted devices C:receiving devices D:received devices

Flow control is a function that prevents network congestion by ensuring that (19) do not overwhelm (20) with data.
There are three commonly used methods for handling network congestion. (21) is used by network devices to temporarily store bursts of excess data in memory until they can be processed (22) are used by receiving devices to help prevent their buffers from overflowing. (23) is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.

A:transmitting devices B:transmitted devices C:receiving devices D:received devices

Flow control is a function that prevents network congestion by ensuring that (19) do not overwhelm (20) with data.
There are three commonly used methods for handling network congestion. (21) is used by network devices to temporarily store bursts of excess data in memory until they can be processed (22) are used by receiving devices to help prevent their buffers from overflowing. (23) is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.

A:transmitting devices B:transmitted devices C:receiving devices D:received devices

Flow control is a function that prevents network congestion by ensuring that (1) do not overwhelm (2) with data. There are three commonly used methods for handling network congestion. (3) is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (4) are used by receiving devices to help prevent their buffers from overflowing. (5) is a flow -control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

A:transmitting devices B:transmitted devices C:receiving devices D:received devices