关于幽门螺杆菌生物学特征不正确的是（） A.需氧菌 B.具有黏附性 C.革兰阴性杆菌

Health experts have long worried about the increasing rate of obesity in kids. It’s an important concern: Being very overweight or obese during childhood can lead to serious problems normally seen in adults, such as diabetes and high blood pressure. Poor diets and a lack of exercise are usually the causes. But would you ever have imagined there might be a connection between the bacteria that lived in your guts （内脏）when you were a baby and the chance that you would become overweight?

Scientists in Finland recently found just such a link. In a recent study, they showed that overweight kids had different species of bacteria living in their guts.

You probably think of bacteria only as germs that can make you sick. While it’s true that some bacteria can make people ill, your body actually depends on some types of bacteria to help you digest food and extract nutrients from it. These “good” bacteria live in your guts, where they process the food you eat.

Human babies get these bacterial helpers from their moms. When a baby is born, some of the bacteria in the mother move into the baby’s body. Growing babies get additional “good” bacteria from the milk their mothers produce. And it turns out the bacteria might play an important role in regulating weight just six years later.

So how could these bacteria affect weight? The researchers still haven’t tested that question, but future tests might lead to an answer.

小题1:The “link” in Paragraph 2 refers to the relationship between _______.

A．bacteria and the chance of being overweight

B．obesity and diabetes

C．diets and the chance of being overweight

D．bacteria and exercise小题2:Which of the following is NOT the function of “good” bacteria?

A．Helping to digest food.

B．Helping to take nutrients from food.

C．Helping to regulate weight.

D．Making a person ill.小题3:The purpose of writing this passage is to _______.

A．introduce the role of bacteria in children’s weight

B．analyze the influence of obesity on kids

C．give advice on how to lose weight quickly

D．explain the function of bacteria in foods

阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。

71. The situation of unemployment has not been so serious ___________________________ (所期待的).  (expect)

72. Tom has been playing basketball on the playground, ___________________________ (脸上全是汗水).  (cover)

73. ___________________________ (余下要做的) is an accurate description of the long process of the experiment.  (leave)

74. It’s widely accepted that never in history ___________________________ (有过) a more successful opening ceremony than that of the Beijing Olympics.  (there)

75. During my last trip my cellphone was left in a hotel accidentally, ______________________  (再也找不到) .  (find)

76. He told us that he was very happy ___________________________ (他现在的处境) . (be)

77. Qian Xuesen went to California from 1935 to 1955, ___________________________ (在那时期) he concentrated on the research into jet planes.  (period)

78. I have no idea whether the machine can be used again but it __________________________ (在维修) in the morning.  (repair)

79. Did you know ___________________________ (到底怎么) the nuclear explosion occurred in Japan?  (it)

80. The air hostess required that___________________________ (我们坐着) until the plane had come to a complete stop.  (remain)

在经济订货量模型(EOQ)中，每次的订货成本和存储成本都是估计值，如果改变这些估计值以决定变化对最佳经济订货批量的影响程度，这种分析方法被称作：

A．预测模型。
B．敏感性分析。
C．着急路径分析法。
D．决策分析。

男性，50岁，间断周身乏力，黄染，酱油色尿4年，每到冬季发作，伴手指、耳垂紫绀，化验血常规：WBC6.5×10 9/L，Hb41g/L，PLT205×l0 9/L，Ret12．0%，最可能诊断是

A．白血病

B．再生障碍性贫血

C．溶血性贫血

D．巨幼细胞性贫血

E．营养性贫血

填写“出/入境货物报检单”H．S编码栏时，仅填写该商品前四位即可。( )