关于吸血习性,下列说法正确的是() A.仅雄虫吸血 B.仅雌虫吸血 C.仅若虫吸血

题型:单项选择题 A1/A2型题

问题:

关于吸血习性,下列说法正确的是()

A.仅雄虫吸血

B.仅雌虫吸血

C.仅若虫吸血

D.雌虫及若虫吸血,雄虫不吸血

E.雌虫、雄虫、若虫均吸血

考点:临床医学检验技术(师)医学节肢动物医学节肢动物题库
题型:单项选择题 A1/A2型题

 如图所示上瓶盛的是空气,下瓶盛的是红棕色的二氮化氮,当抽出玻璃片后看到红棕色气体逐渐______上瓶,同时两瓶颜色逐渐变______,此实验说明了______.

题型:单项选择题 A1/A2型题

按经济用途不同分类,库存可分为( )等类型。

A.商品库存

B.制造业库存

C.周转库存

D.其他库存

E.安全库存

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用划线词的反义词填空

1. Bring your math book here and ________ away your exercise books.

2. I like short hair. I don't like ________ hair.

3. My shoes are too old. I want to buy ________ ones.

4. The store sells school things. You can ________ some coloured pencils there.

5. I think this book is very easy and that book is very ________.

6. Watching TV is too boring. But playing sports is very ________.

7. His first name is John and his ________ name is Green.

8. The shirt is too big for me. Give me a ________ one, please.

9. The blackboard is black. The words on it are ________.

题型:单项选择题 A1/A2型题

剪纸是我国的民间艺术。观察下图所示的剪纸,它们形象地反映了

[ ]

A.男耕女织的自然经济B.高度发达的商品经济C.领先世界的手工技术D.丰富多彩的文化生活

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随机区组设计资料的方差分析中,总变异可以分解为()

A.组间变异和组内变异

B.区组变异和组间变异

C.区组变异和组内变异

D.处理组间变异和误差变异

E.处理组间变异、区组间变异和误差变异

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