蝗虫能适应陆地生活,其形态结构特点是 ①用气管呼吸②胸部有足和翅③有外骨髂、防止

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问题:

蝗虫能适应陆地生活,其形态结构特点是

①用气管呼吸              ②胸部有足和翅                   ③有外骨髂、防止水分蒸发

④视觉发达,有一对复眼

A.①②③④

B.①②③

C.①②④

D.①③④

考点:探究实验:鸟适于飞行的特点动物的生活环境和生活习性动物的形态结构和功能
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用方框中所给单词的适当形式填空,使短文通顺、正确、连贯 (每个单词限用一次)。
then;   do;  ;   right;   show;   different;   who;   late;   easy;  memory
Did your parents make you take music lessons? Recent research has   小题1:  that people who studied music as a child are able to remember words much better than people   小题2:  musical training. One experiment was  小题3: with sixty female American college students. A similar study was carried out with ninety boys in Hongkong of China. In both cases, students had to  小题4:words and pictures.  小题5:  they were asked how many they remembered. Scientists found that students   小题6: studied music were better at remembering words, but both groups remembered the pictures equally well. Perhaps it is   小题7:to use your imagination to associate(联想) pictures with things in your life. Also, you can make up stories for pictures.
Scientists explain the   小题8:  by saying that both musical memory and verbal (written or spoken words) memory are located in the left side of the brain. Visual memory, the kind needed for pictures, is located in   小题9:  half of the brain. Since verbal memory is very important for success at school, researchers now think that taking music lessons can give you a real academic advantage. In fact, when the students were tested a year   小题10: , the students who had stopped taking lessons still did well on verbal memory. Maybe it’s time to give music lessons a try.
题型:选择题

急性腹膜炎的死亡原因是()。

A.急性呼吸衰竭

B.急性肾衰竭

C.急性肝衰竭

D.急性心衰竭

E.急性脾衰竭

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肺脓肿的致病菌多属

A.金黄色葡萄球菌为主

B.支原体为主

C.厌氧菌为主

D.肺炎球菌为主

E.真菌为主

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下列腧穴中,治疗消渴的经验穴是()。

A.阴陵泉

B.太渊

C.膏肓

D.太冲

E.胃脘下俞

题型:选择题

我们每天都会摄入很多的有机物,期中属于 人体最重要的供能物质是(  )

A.蛋白质

B.糖类

C.脂肪

D.维生素

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