1. Hand me that pamphlet before you leave, will you.？
    [A] novel [B] comb [C] brochure [D] note
    2. Revealing military secrets is tantamount to treason.
    [A] equivalent to [B] more serious that [C] different from [D] trivial when compared with
    3. Diffusion is the spontaneous spreading of matter caused by the random movement of molecules.
    [A] patternless [B] whirling [C] constant [D] rampant
    4. It required a great deal of water to quench the fire.
    [A] scorch [B] thrash [C] put out [D] depress
    5. The particles in the atmosphere can affect the Earth's climate.
    [A] air current [B] dust [C] clouds [D] rays
    Keys:CAACB