在含有溴化钾和碘化钾的混合液里通入过量氯气，然后把此溶液蒸干，灼烧，最后留下来的是[ ]
A.KCl
B.KCl和KBr
C.I2
D.Br2
答案：A
读短文，判断正(T)误(F)。
Today is Sunday. It's sunny today. I wear my new shirt. Zhang Peng wears new pants. Sarah wears new
shoes. We go to the farm and have a picnic (野餐). I can see ten pigs and twelve ducks. I can see many purple
flowers. They are beautiful. We play together. We are very happy today!
( ) 1. Zhang Peng wears new jeans.
( ) 2. Sarah's shoes are new.
( ) 3. I wear my new shirt.
( ) 4. There are ten ducks.
( ) 5. There are ten pigs.
唐代较大的都市有 [ ]
A．长安和洛阳
B．洛阳和杭州
C．开封和大都
D．开封和杭州
