下述哪项不是静脉血栓抗凝治疗的禁忌证（）。 A.严重出血 B.严重肝肾功能不全 C.

心绞痛发作伴高血压宜选用（）

A．地高辛 

B．卡托普利 

C．硝酸甘油 

D．硝苯地平

阅读理解。

      As you dash outdoors in the middle of winter, you might make it halfway down the block before realizing

that your ears are freezing because you forgot your hat.

      Now, scientists have shown that even though you've had an apparent memory lapse (丧失), your brain

never forgot what you should have done.

      Memory works mainly by association. For example, as you try to remember where you left your keys,

you might recall you last had them in the living room, which reminds you that there was an ad for soap on

television, which reminds you that you need soap, and so on. And then, as you're heading out of the door to

buy soap, you remember that your keys are on the kitchen counter. Your brain knew where the keys were

all along. It just took a round-about way to get there. 

      Now, scientists at the Salk Institute for Biological Studies are studying associative memory in monkeys

to figure out just how this complicated process works. 

      First, the researchers trained a group of monkeys to remember arbitrary (任意的) pairs of symbols. The

researchers showed the monkeys one symbol (cold weather) and then gave them the choice of two other

symbols, one of which (a hat) would be associated with the first. A correct choice would earn them a sip of

their favorite juice.

      Most of the monkeys performed the test perfectly, but one kept making mistakes.

      "We wondered what happened in the brain when the monkey made the wrong choice, although it

apparently learned the right pairing of symbols," said study leader Thomas Albright.

      Albright and his team observed signals from the nerve cells in the monkey's inferior temporal cortex (ITC),

an area of its brain used for visual pattern recognition and for storing this type of memory.

      As the monkey was deciding which symbol to choose, about a quarter of the activity in the ITC was due

to the choice behavior.

      Meanwhile, more than half the activity was in a different group of nerve cells, which scientists believe

represent the monkey's memory of the correct symbol pairing, and surprisingly, these cells continued to fire

even when the monkey chose the wrong symbol.

      "In this sense, the cells 'knew' more than the monkeys let on in their behavior," Albright said. "Thus,

behavior may vary, but knowledge endures."

1. The example of the keys and soap is given to explain the relationship between ______. [ ]

A. memory lapse and human brain

B. memory and association

C. memory and television ads

D. memory and our daily life

2. Which of the following best expresses the general idea of the text? [ ]

A. Your brain may forget something, but not always.

B. Activity is a round-about way to memory.

C. Your brain remembers what you forget.

D. Monkeys have better memory than us.

3. The researchers believe the monkey that made the wrong choice ______. [ ]

A. also knew the correct answer

B. had the worst memory

C. failed to see the objects well

D. had some trouble with its nerve system

4. The underlined word "endures" may be best replaced by ______. [ ]

A. disappears

B. increases

C. improves

D. remains

2岁的男性患儿，超声检查发现肝脏巨大实性肿块，直径约10cm，彩色多普勒显示肿块内血供丰富，请问最可能的诊断是（）。

A.肝细胞癌

B.胆管细胞癌

C.肝母细胞瘤

D.血管瘤

E.纤维板障型肝癌

黄河公司于2001年1月1日开始执行《企业会计制度》。2003年12月1日黄河公司购入不需要安装的设备1台并投入使用。该设备入账价值为600万元，采用年数总和法计提折旧(税法规定采用双倍余额递减法提折旧)，折旧年限为5年(与税法规定一致)预计净残值为零(与税法规定一致)。考虑到技术进步因素，公司从2005年1月起将该项设备的折旧方法改为双倍余额递减法，尚可使用年限为4年，预计净残值为零。假设公司适用所得税税率为33%，所得税采用债务法核算。则该设备折旧方法的估计变更对 2005年净利润影响金额为( )万元。

A．40

B．-26.8

C．53.2

D．19.8

以下属于经济作物类期货的有（）

A.原糖期货和可可期货

B.咖啡期货

C.原油期货

D.棉花期货