Prior to the UML，there was no clearleading (66) language.Users had to choose from among many similar modeling languages with minor differences in overall (67) power.Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages.This lack of (68) discouraged new users from entering the OO market and from doing OO modeling，without greatly expanding the power of modeling.Users longed for the industry to adopt one，or a very few，broadly supported modelinglanguages suitable for (69) usage.

Some Vendors were discouraged from entering the OO modeling area because of the need to support many similar，but slightly different，modeling languages.In particular，the supply of add-ontools has been depressed because small vendors cannot afford to support many different formatsfrom many different (70) modeling tools.It is important to the entire OOindustry to encourage broadly based tools and vendors，as well as niche products that cater to the needs of specialized groups.(66)

A．programming

B．modeling

C．formal

D．intelligent(67)

A．control

B．expressive

C．conductive

D．interactive(68)

A．agreement

B．understanding

C．characteristic

D．diversitv(69)

A．distincitive

B．special-purpose

C．separate

D．general-purpose(70)

A．internal

B．external

C．front-end

D．back-end

[单选题]Prior to the UML, there was no clear leading(66)language. Users had to choose from among many similar modeling languages with minor differences in overall(67)power. Most of the modeling languages shared a set of commonly accepted concepts that are ex

[单选题]prior to the UML, there was no clear leading(1)language. Users had to choose from among many similar modeling languages with minor differences in overall(2)power. Most of the modeling languages shared a set of commonly accepted concepts that are expr

[主观题][ ] Prior to engaging in negotiation it is wise to consider one’s own “bottom-line”

[单选题]Prior to the availability of enterprise EDM, locating a document over a LAN could be difficult, and over a WAN(66)nearly impossible. With the model for collaborative work spreading, and with more users sharing(67)documents through e-mail and the Inte

[单选题]Prior to lowering the lifeboat，the most important item to check is the（）.A . oarsB . sailC . boat plugD . life preserver

[单选题][Prior] to myarrival,they had a meeting.A.beforeB.afterC.onD.about

[单选题]Prior to lighting off a cold automatically fired auxiliary boiler, you should （）.A . check and regulate the water levelB . close the air cock once fires are litC . blowdown the gage glassD . crack the steam stop to assure protective steam flow

[单选题]Prior to expiration, an American put option on a stock:A.Is bounded by S -

[问答题]UML

[单选题]Prior to expiration, the maximum value of an Americana call option and an A