For COSPAS-SARSAT system,（）usually transmit initial COSPAS-S

permit a user to compose and transmit a message on an office automation system.

A．Electronic mail

B．Datagram

C．MSN message

D．Search engine

Air cocks, usually positioned at the_______in a circulating system, is used to get rid of the air in the system.

A.bending joint

B.expansion tank

C.weld

D.the highest point

In a data communication system, which transport media can be described as following: Has two classes: single mode and multiple mode; with higher transmit rate; with the best reliability

A．radio channel

B．fiber optic cable

C．twisted-pair cable

D．coaxial cable

The government will _____ a reform. in the educational system.

[A] initiate

[B] initial

[C] initiative

[D] intimate

method is the use of a data processing system to represent selected behavioral(67)of a physical or abstract system. For example, the representation of air streams around airfoils at various velocities, temperatures, and air pressures with such a system.Emulation method is slightly different, it uses a data processing system to imitate another data processing system, so that the imitating system accepts the same data, executes the same programs, and achieves the same(68) as the imitated system. Emulation is usually achieved(69) hardware or firmware. In a network, for example, microcomputers might emulate terminals(70) communicate with mainframe.

A．Assembly

B．Simultaneity

C．Fraud

D．Simulation

An embedded operating system is the(71)program that manages all the other programs in an embedded device after initial load of programs by a(an)(72). It normally guarantees a capability within a specified(73)size and(74)constraint as well as with application programs. It also n0rmalty has small foot print including initial boot loader, OS kernel, required device drivers,(75)for the user data and so forth. It has very-likely structure of a normal operating system however mainly differentiated by some factors such as type of pre-installed device, functional limits, taking designed job only.

A．hardware

B．business

C．software

D．external

None of the following statements is true except ______.

A．initial public offerings will dilute each shareholder's existing holding

B．additional floats of companies stock will dilute each shareholder's existing holding

C．compared with additional floats, initial public offerings are more common in the new issues market for equities

D．initial public offerings usually involve offerings of shares of larger, more mature companies seeking additional equity capital

After the initial cleaning of flue gas in an inert gas system the gas is passed through what device for final cleaning ________．

A.Scrubber

B.Demister

C.Deck water seal

D.Final filter