下列等式中，一定成立的是（ ） A．a2•a3=a6 B．a2+a3=a5 C．

A dog has a piece of meat in his mouth. He’s going to eat it at home. As he is walking on a bridge, he looks down and sees himself in the river. That dog looks like him and he has a piece of meat in his mouth, too. The dog thinks it’s another dog. So he says to himself, “I want to eat more meat. I must make him run away from here and get the meat in his mouth. Then I can have two pieces.” He opens his mouth to bark. That dog in the water barks at him. Suddenly, his meat goes down into the water. The dog is so angry, he jumps into the water to catch the other dog.

小题1:How many dogs are there in the river?

A．None.

B．one.

C．Two.

D．We don’t know.小题2:The dog in the water         .

A．is more hungry

B．is very angry at him

C．is very kind

D．is not a real dog at all小题3:What does the story tell us?

A．The greedy(贪心的) dog gets nothing at last.

B．The dog is a clever one.

C．A dog always wants two pieces of meat.

D．The dog can get two pieces of meat.

以下哪项使中性粒细胞增多（）

A.脾亢 

B.再障 

C.急性心肌梗死 

D.病毒感染

任化老年妆时，刻画眼袋、眼角纹和鱼尾纹的时候，要选用（）的笔。

A.棕色

B.黑色

C.灰色

D.蓝色

以下有关股票股值的描述，不正确的有（）

A、估值日对持有的股票估值时，如为估值增值，按当日与上一日估值增值的差额，借记股票投资（估值增值），贷记公允价值变动损益。如为估值减值，做相反的会计分录

B、首次发行未上市的股票，采用估值技术确定公允价值，在估值技术难以可靠计量公允价值的情况下，按成本价估值

C、非公开发行有明确锁定期的股票，按估值日在证券交易所上市的同一股票的收盘价进行估值

D、送股、转增股、配股和公开增发新股等发行未上市的股票，按估值日在证券交易所上市的同一股票的收盘价进行估值

下列哪个规则对船舶具有强制性：（）。

A、《国际散装运输液化气体船舶构造与设备规则》

B、《现有散装运输液化气体船舶规则》

C、《散装运输液化气体船舶构造与设备规则》