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单项选择。 1. _____ as much as one-fifth of all timber harvested is not used. A. The estimate B. They estimate C. They are estimated D. It is estimated that 2. _____ was once regarded as impossible has now become a reality. A. That B. Which C. Who D. What 3. _____ we have achieved is attributed to the guidance of our parents. A. Whoever B. Whatever C. However D. That 4. _____ you say now can’t make up for what you’ve done. A. No matter B. Whatever C. However D. That 5. Although _____ happened in this developed country sounds like science fiction, it could occur elsewhere in the world. A. which B. what C. how D. it 6. _____ she had forgotten to take her notebook. A. That occurred to her B. She occurred that C. To her that occurred D. It occurred to her that 7. I am sure that _____ she said is wrong. A. which B. all C. this D. what 8. We lost our way in the forest, and _____ made matters worse was that it was getting dark. A. that B. which C. it D. what 9. _____ occurred to him that he had forgotten to lock the door when he left home. A. This B. It C. That D. These 10. _____ or not is still uncertain. A. He’s coming B. If he is coming C. That coming D. Whether he’s coming 11. It’s _____ he’ll be able to come. A. doubt whether B. doubtful C. doubt it D. doubtful whether 12. It is _____ that the bridge has existed for more than three centuries . A. appeared B. risen C. said D. born 13. _____ he saw both surprised and frightened him. A. That B. When C. What D. Which 14. _____ is a spell of warm sunshine. A. What do we all need B. What all we need C. What we need all D. What we all need 15. _____ is a pity that he failed in the race. A. What B. That C. He D. It 16. _____ a spoonful of soil can tell us so much about the structure and early history of the moon. A. Remarkable B. Quite remarkably C. It is remarkable that D. It is remarkable 17. _____ you nominate will be elected. A. Who B. Which C. Whomever D. That’s 18. _____ book you borrow must be returned within a week. A. What B. Which C. Whichever D. That’s 19. _____ is troubling me is that I don’t have much experience in international commerce. A. It B. That C. Which D. What 20. _____they wil go there to try another experiment has not been decided yet. A. Whether B. If C. About whether D. Why
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【单选题】针对存在序列相关现象的模型估计,下述哪些方法不是适用的( )
A.
加权最小二乘法
B.
一阶差分法
C.
广义差分法
D.
Durbin 两步法
【单选题】听力原文:W: Well, this must be the National Library. M: I guess so. Oh no! I don't think it's open today. Look. It says 'Closed Tuesdays'. W: Well, we'll just have to come back tomorrow. M: But we're supp...
A.
On Tuesday.
B.
On Wednesday.
C.
On Thursday.
D.
On the weekend.
【多选题】下列关于证券市场线的说法中正确的有()。
A.
(r f +β× ( r m - rf ))所代表的直线就是证券市场线
B.
( rm - rf )称为市场风险溢价
C.
如果风险厌恶程度高,那么( r m - rf )就大
D.
在证券市场线中,横轴是( r m - rf ),纵轴是必要收益率 r
【单选题】下列有关证券市场线的说法中,不正确的是( )。
A.
Km是指贝塔系数等于1时的股票要求的收益率
B.
预计通货膨胀率提高时,证券市场线会向上平移
C.
从证券市场线可以看出,投资者要求的收益率仅仅取决于市场风险
D.
风险厌恶感的加强,会提高证券市场线的斜率
【简答题】毒蛇咬伤时在伤口的____绑扎,每隔15~20分钟左右松解1次,以免造成组织坏死。
【多选题】有四个运动的物体 A 、 B 、 C 、 D ,物体 A 、 B 运动的 x - t 图象如下图甲所示;物体 C 、 D 从同一地点沿同一方向运动的 v - t 图象如图乙所示.根据图象做出的以下判断中正确的是( )
A.
物体 A 和 B 均做匀速直线运动且 A 的速度比 B 更大
B.
在0~3 s的时间内,物体 B 运动的位移为10 m
C.
t =3 s时,物体 C 追上物体 D
D.
t =3 s时,物体 C 与物体 D 之间有最大间距
【多选题】下列有关证券市场线的说法中,正确的有( )。
A.
证券市场线的横轴是β值,纵轴是预期的报酬率
B.
投资者对风险的厌恶程度越大,证券市场线的斜率越小
C.
通货膨胀提高时,证券市场线会向上平移
D.
证券市场线测度风险的工具是β系数
【简答题】下图所示为12月22日A、B、C、D四地昼夜长短示意图,阴影代表黑夜,据图回答1—3题。 1、水平运动物体发生左偏的地点是 [     ] A、A图 B、B图 C、C图 D、D图 2、处于夏季的地点是 [     ] A、A图 B、B图 C、C图 D、D图 3、过三个月后,四地中昼夜情况与B地目前昼夜情况的有 [     ] A、1个地点B B、2个地点C、D C、3个地点B、C、D D、4个地点...
【多选题】下列有关证券市场线的说法中,正确的有( )。
A.
证券市场线反映的是系统风险与期望报酬率的关系
B.
证券市场线的斜率受投资者对待风险的态度的影响
C.
通货膨胀提高时,证券市场线会向上平移
D.
证券市场线测度风险的工具是标准差
【多选题】下列有关证券市场线的说法中,正确的有()。
A.
Rm是指贝塔系数等于1时的股票要求的报酬率
B.
预计通货膨胀率提高时,证券市场线会向上平移
C.
从证券市场线可以看出,投资者要求的报酬率仅仅取决于市场风险
D.
风险厌恶感的加强,会提高证券市场线的斜率
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