问题
选择题
下列属于化学变化的是( )
A.火药爆炸
B.汽油挥发
C.冰熔化成水
D.水银受热膨胀
答案
答案:A
下列属于化学变化的是( )
A.火药爆炸
B.汽油挥发
C.冰熔化成水
D.水银受热膨胀
答案:A
把句子补充完整,将答案序号写在横线上。 | |
2. Your eyes are big. Mine are small. Yours are _____________ than mine. 3. Father is tall. Mother is short. Father is _____________ than mother. 4. Brother is one year old. Sister is three years old. Brother is _____________ than sister. |