高速船由于其特殊的船型和较高的航速，使得它们具有质量较小，操纵非常灵活、方便的特性，但其耐波性不太好，所以不适合于海上航行。

One of the functions of the (71) is to store the applications programs or the various secondaries. The (72) may have similar or dissimilar functions. The same control code received from two different, secondaries may warrant two different actions on the part of the host computer. If the system so requires, the host computer must also provide (73) for the centralized data and the software for database management. Data information is normally stored in auxiliary memories to which the computer has ready access. The (74) peripherals connected to the host computer allow for human entry and intervention. As needs change, application programs may require additions, deletions, or changes. Data link problems also arise which are (75) the range of the computer’s programmed capabilities. In such cases, human entry is required to make the necessary changes to resolve the existing problems.

A．peripherals

B．host computer

C．the interface

D．the client