The WHO is worried aboutA．people"s stopping eating beef.B．people"s stopping eating chicken

What is the advantage for the people who join the co-op for a 6-month period？A．The members

The speaker worried aboutA．smoking problem.B．traffic problem.C．sound pollution.D．air pollu

What is the newest problem facing people who drive to school？A．Pollution in the air.B．A la

Which of the following statements is NOT true？A．Hilton is NO.l choice for people who keep

What is the most important factor in solving the man who threatened people？A．Power.B．Skill

●The prototyping method is a dynamic design processes, which requires people who use proto