黄土高原生态系统十分脆弱,主要表现在
①抵御自然灾害能力较低②水土流失严重③人地矛盾尖锐④环境遭到破坏后恢复困难[ ]
A.①②
B.②③
C.②④
D.①④
答案:D
Look at this. It’s a blue bag. It is my bag. What’s in it? Look, this is my English book. It’s blue, too. My Chinese book is also in my bag. It is yellow. This is my pencil case. It’s big and nice. I like English and Chinese. My bag is my good friend.
根据短文内容选择最佳答案。
小题1: My bag is .
A.yellow
B.blue
C.nice
D.big小题2: --- What’s in my bag?
--- .
A.My English book
B.My Chinese book
C.My pencil case
D.All the three小题3:My Chinese book is also in my bag. "Also" means(意思是) .
A.也
B.颜色
C.不在
D.放进小题4: My is my good friend.
A.Chinese book
B.English book
C.pencil case
D.bag
以下哪个油田没有分布在河北省海域?()
A.冀东油田
B.大港油田
C.渤海油田
D.大庆油田