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【单选题】
已知 A 股票的风险收益率为 9 %,市场组合的风险收益率为 12 %,则 A 股票的 β 系数为A.
0.6
B.
0.75
C.
1
D.
1.2
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皮皮学刷刷变学霸
举一反三
【单选题】The company promised to pay some money for the customers __ ___ their shoddy（伪劣的）goods and ______ an apology in public．
A.
purchasing ;
B.
purchasing; make
C.
purchased; to make
D.
to purchase; made
【单选题】舷弧是甲板的纵向曲度,其作用是________。I.减少甲板上浪;II.增加甲板强度;III.便于甲板排水;IV.使船体外形美观;V.增加保留浮力;VI.便于甲板作业。
A.
Ⅰ，Ⅲ，Ⅳ，Ⅴ
B.
Ⅰ，Ⅱ，Ⅴ，Ⅵ
C.
Ⅲ，Ⅳ，Ⅴ，Ⅵ
D.
Ⅰ，Ⅱ，Ⅲ，Ⅳ
【简答题】下列程序运行后的输出结果是______。 include＜stdio.h＞ main() { char s[20]; scanf('%S',S); printf('%s',s); } 运行程序，输入HOW ARE YOU。
【单选题】The head of the company promised to deal with matters of this sort ______ he returned to his office.
A.
until
B.
while
C.
by the time
D.
the moment
【单选题】The company promised to pay some money for the customers ____ their poor goods and ____ an apology in public. [ ]
A.
purchasing;
B.
purchasing; make
C.
purchased; to make
D.
to purchase; made
【单选题】A spokeswoman for the company promised that they would investigate our complaint.
A.
speaker
B.
lecturer
C.
actress
D.
representative
【简答题】某同学在学完《分子和原子》后，对教材中的实验进行了如图所示的改进： 查阅资料：①氢氧化钠是一种白色固体，溶于水时会放出大量热． ②氨水显碱性，碱性溶液能使无色酚酞变红． ③浓氨水具有挥发性，能挥发出氨气，氨气具有刺激性气味，对人体有危害． 根据图所示和资料回答下列问题： （1）在小试管中加入2～3g氢氧化钠固体的作用是______． （2）滴入2～3滴浓氨水后，在c处可观察到的现象是______．...
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