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【单选题】
皮亚杰认为心理发展中最重要的起决定作用的因素是( )。A.
同化
B.
顺应
C.
图式
D.
平衡
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【单选题】关于三羧酸循环的叙述，错误的是
A.
是糖、脂肪、蛋白质的最终代谢通路
B.
是糖、脂肪、氨基酸代谢联系的枢纽
C.
可为其它物质合成提供原料
D.
始于柠檬酸的形成
E.
是释放能量、产生ATP的主要环节
【单选题】The reasons for the popularity of Treasury bills are the following except that ______.
A.
they are the only money market instruments affordable to individual investors
B.
they are highly liquid
C.
they are risk-free
D.
they give higher return than other money market instruments
【单选题】Which of the following is a characteristic of Treasury bills?
A.
They are coupon instruments
B.
They are short-term debt instruments issued by major corporations
C.
They are discount securities
D.
They have more risk than other money market securities
E.
All the options are characteristics of Treasury bills
【简答题】三羧酸循环是()、()和()代谢联系的枢纽,也是糖、脂肪、蛋白质的最终代谢通路。
【单选题】The only disadvantage of investing Treasury bills is that ______.
A.
the liquidity is not satisfactory
B.
the return is not satisfactory
C.
the investment is not so safe
D.
the investment is not exempt from state taxes
【单选题】关于三羧酸循环的叙述，错误的是
A.
是糖、脂肪、蛋白质的最终代谢通路
B.
是糖、脂肪、氨基酸代谢联系的枢纽
C.
可为其他物质合成提供原料
D.
始于柠檬酸的形成
E.
是释放能量、产生ATP的主要环节
【单选题】Which of the following statements are true of Treasury bills?
A.
The market for Treasury bills is extremely deep and liquid.
B.
Occasionally, investors find that earnings on T-bills do not compensate them for changes in purchasing power due to inflation.
C.
By volume, most Treasury bills are sold to individuals who submit noncompetitive bids.
D.
All of the above are true.
E.
Only (a) and (b) of the above are true.
【简答题】设总体 ,其中未知参数 , 是 的样本,则 的矩估计为 , 样本似然函数为 .
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