1．Which disease had almost the same level tor the past 0 years?

    A．TB        B．Malaria                C．Aids               D．Smallpox

2．Two diseases have been controlled according to the chart．What are they?

    A．TB and Malaria                   B．Aids and Smallpox

    C．TB and Smallpox                         D．Mataria and Smallpox

3．In which year does TB show the 1 arrest number?

    A．1960    B．1970                    C．1980               D．1990

4．The number of Aids causes in 2000 is       larger than that in 1990．

    A．000       B．300                     C．100                D．1000

5．Which of the following is WRONG?

    A．Smallpox has almost disappeared since 1990．

    B．The government must take some action to control Aids．

    C．Few people suffered from Aids before 1970．

    D．Doctors have found a very good way to treat Malaria．