问题
选择题
普利斯特利的实验不能说明( )
A.小白鼠呼吸需要氧气
B.绿色植物光合作用释放氧气
C.蜡烛燃烧消耗氧气
D.绿色植物光合作用需要水
答案
答案:D
普利斯特利的实验不能说明( )
A.小白鼠呼吸需要氧气
B.绿色植物光合作用释放氧气
C.蜡烛燃烧消耗氧气
D.绿色植物光合作用需要水
答案:D
完形填空。 | ||||
_1_ weekends, I often go to movies _2_ my friend, David. My _3_ movie star is Jackie Chan. He's a great _4_. He has a new movie, Speed. It's a very _5_action movie. I think it's exciting. Jack likes Michele Yan (杨紫琼) _6_. He likes her famous movie, Sleepless Night. It's a thriller. I don't think it's great. _7_, it's boring. One thing is interesting. Jack _8_ likes Beijing Opera. He often _9_ me, "Beijing Opera is really _10_!" My father likes it too. He even wants to be a Beijing Opera artist! | ||||
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