Two substitutes were used in a fierce soccer game last night. The underlined part means___

By 1800 more than a thousand steam engines were in use in the British Isles, and Britain r

How many people were killed in the shelling of Yeonpyeong？A．Two.B．Three.C．Four.D．Five.

The two cars were broken into pieces in the _____.A. collideB. conflictC. clashD.collis

What does the news item say about racial problem in Indonesia？A．Two ordinary folks were ki

According to Steve Jobs, what were two milestone products in our industry to date？A.Ap

39Sensitivity analysis can be used in risk analysis to: A.Substitute for uncertainty analy