单轨吊运输区段支架超过（）吨低于（）吨时运输必须使用柴油机单轨吊。
参考答案：8；28
—Where are the tigers from?
—___________.[ ]
A. They are very big.
B. They are smart.
C. They are from China.
D. I like them very much.
我国证券市场的投资者仅指境内的自然人和法人。( )
