要通过股票组合取得更好的非系统风险的效果,应当( )。 A.选择同一行业的股票

题型:单项选择题

问题:

要通过股票组合取得更好的非系统风险的效果,应当( )。

A.选择同一行业的股票
B.选择每股收益差别很大的股票
C.选择不同行业的股票
D.选择相关性较差的股票

考点:证券业从业考试证券投资基金证券投资基金
题型:单项选择题

阅读理解。

     The elephant is the biggest four-legged animal in the world. It is also the gentlest, but not always!

      Elephants are like us in some ways.They can remember things very well. They never forget great

sadness or great happiness.lf a female elephant dies,her daughters and her grand daughters will be sad

for many days. They will carry a bit of it away with them.They will never forget a dead friend.

    Elephants are like us in some ways,but they are also different. They live in families-families of females.

There will be a few young males a few"babyboys". But the females will soon send them away. An

elephant family keeps only its great-grandmothers.

     The females live together for fifty, sixty or ahundred years. The older animals look after theyounger

ones.The mothers teach their daughters andset a good example to them.And what happens to the male

elcphants? Well,the young males stay with their mothers for some time.Then they must leave the family.

The females justsend them away. A male elephant does not often have a friend. He lives alone, away

from the family,and he doesn't like living with other male elephants,either.

     Sometimes the females call a male elephant. He can visit them then,and stay for some time. But soon

his"wives"and sisters send him away again. The females have a very happy family life. What does the

male elephant think about it? We don't  know.

根据短文内容回答问题。

l. Is the elephant the biggest animal in the world?

   _________________________________________

2. Is the elephant's natural life much shorter than humans?

   _________________________________________

根据短文内容,判断下列句子正T误F。

( )3. A female elephant doesn't often have a friend.

( )4. Elephants never forget great sadness or great happiness.

翻译下面的句子。

5. A male elephant lives alone,away from the family, and he does't like living with other

    male elephants, either.

    _________________________________________

题型:单项选择题

若一个正方形的边长为a,则这个正方形的周长是  

题型:单项选择题

关于新生儿呕吐中下列哪项最常见()

A.胃食道反流

B.幽门痉挛

C.感染

D.咽下综合征

E.食道闭锁

题型:单项选择题

垃圾填埋场地质的岩性以()为好

A.粘土层

B.页岩层

C.粉砂层

D.卵石层

E.致密的火成岩层

题型:单项选择题

患儿男性,10个月,体重8.0kg,因左肾上腺区肿物拟行手术治疗。体检:发育良好,血压90/68mmHg,心率125次/分。CT检查示左侧肾上腺区实质性占位,大小7×6.5×6.5cm,肿物与下腔静脉关系密切,下腔静脉瘤栓形成。化验检查:Hb9.5g/dL,24小时尿儿茶酚胺及代谢产物无明显升高,其他实验室检查也未见异常。

关于术中体温的维护,下列哪些是正确的()

A.常规监测体温

B.小儿低温调节中枢发育尚不健全,易受环境的影响

C.麻醉后小儿低体温主要因机体产热不足所致

D.提高室温、输入加温液体或血液有一定临床效果

E.可使用红外加温仪

F.可使用加温毯

G.吸入气体湿化

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