两种证券组成的投资组合其可行域是一条组合线,而由三种证券组成的投资组合其可行域是坐标系中的一个区域。( )
参考答案:对
选择与句中画线部分意义最接近的解释。
1. Yang Shanzhou becomes well-known in China for planting so many trees for people.
A. great
B. famous
C. friendly
D. warm
2. Try again, maybe you will come up with a better idea.
A. turn up
B. put up
C. get up
D. think up
3. It's a chicken-and-egg question. I can't answer you now.
A. easy
B. clear
C. difficult
D. funny
4. Come and join us. We are short of hands.
A. We need help.
B. We hurt our hands.
C. Our hands are short.
D. We can do it by ourselves,
5. —Dad, did you tell mother about our gift for her birthday?
—No. Don't let the cat out of the bag. Let's give her a surprise
A. ask her
B. let her know
C. take away the eat
D. give her a eat
我国的四大佛教名山是指( )。
A.五台山 峨眉山 九华山 普陀山
B.五台山 峨眉山 武夷山 普陀山
C.五台山 峨眉山 武当山 普陀山
D.五台山 武夷山 武当山 九华山