2019年CFA考试《CFA一级》考试共240题，分为单选题。小编每天为您准备了5道每日一练题目（附答案解析），一步一步陪你备考，每一次练习的成功，都会淋漓尽致的反映在分数上。一起加油前行。

1、An analyst determines that approximately 99 percent of the observations of daily sales for a company are within the interval from $230,000 to $480,000 and that daily sales for the company are normally distributed. The standard deviation of daily sales (in $) for the company is closest to:【单选题】

A.41,667.

B.62,500.

C.83,333.

正确答案:A

答案解析:“Common Probability Distributions,” Richard A. Defusco, CFA, Dennis W. McLeavey, CFA, Jerald E. Pinto, CFA, and David E. Runkle, CFAMean = ($230,000 + 480,000) / 2 = $355,000. 99 percent of observations under a normal distribution will be plus/minus three standard deviations. Thus, ($355,000 - $230,000)/3.0 = $41,667. It is also the case that ($480,000 - $355,000)/3.0 = $41,667.

2、With respect to the Standards of Professional Conduct relating to conflicts of interests,CFA members are required to fully disclose to clients, prospective clients,and employers:【单选题】

A.only all actual conflicts of interests.

B.only all potential conflicts of interests.

C.both all actual and potential conflicts of interests.

正确答案:C

答案解析:CFA协会要求会员向其雇主、客户和潜在客户披露所有潜在的或者事实上的利益冲突。

3、All else being equal, specifying a lower significance level in a hypothesis test ismost likely to increase the probability of a:【单选题】

A.

B.

C.

正确答案:A

答案解析:显著性水平决定的是犯第一类错误（去真错误）的可能性，降低显著性水平会减少犯第一类错误（去真错误）的可能性，但同时会增加犯第二类错误(去真错误）的可能性。

4、An analyst is doing research about the change of bond value to the passage oftime and gathered the following information about an option-free bond.Thebond has 6 percent coupon and an annual discount rate of 5 percent, pays interestsemiannually, matures in five years, and is valued at $ 1 043.76.Oneyear later, the annual discount rate for that bond is 4.5 percent.At this time,the change in value for this bond that is attributable only to change of interestrate is closest to:【单选题】

A.- $ 18.50

B.$ 7.91

C.$ 18.50

正确答案:C

答案解析:N = 8, I/Y = 5, PMT = $1 000 × 6%/2 = $30, FV = $1 000，求出PV = $1035.85，当利率改变时，N = 8，I/Y = 4.5，PMT = $1 000 × 6%/2 = $30，FV = $1 000，求出PV =$1 054.35，因此利率从5%变化为4.5%时，价格上升了$1 054.35 - $1035.85 =$18.50。

5、A client exhibits an above-average willingness to take risk but a below-averageability to take risk.The investment adviser is most likely to assess the client'soverall risk tolerance as:【单选题】

A.above average.

B.average.

C.below average.

正确答案:C

答案解析:虽然客户有较强意愿去接受风险，但其风险承受能力较低，所以咨询师只能将此客户列为较低风险承受者。