1.单选题- (共43题)
A.杜鹃没有繁殖行为 |
B.杜鹃对其他小鸟的行为属于攻击行为 |
C.其他小鸟对杜鹃雏鸟的饲喂是繁殖行为 |
D.杜鹃雏鸟将其他小鸟的卵推出巢外的行为不属于育雏行为 |
A.牛蛙和野鸡都是体外受精 |
B.牛蛙是体内受精,野鸡是体外受精 |
C.牛蛙是体外受精,野鸡是体内受精 |
D.牛蛙和野鸡都是体内受精 |
A.要经过受精卵、幼体、蛹、成体四个时期 |
B.幼体和成体差异很大,形态的改变是集中在短期内完成 |
C.幼体和成体的生理机能有很大区别,生理机能是集中在短期内改变的 |
D.不存在不吃不动的化蛹时期 |
A.二者都是卵生生物 |
B.二者胚胎发育所需要的营养物质主要由卵白提供 |
C.只要二者的鸟卵结构完整就能孵出后代 |
D.二者鸟卵中只有卵壳起保护作用 |
A. 吃青菜叶的菜青虫是菜粉蝶的幼虫
B. 捕杀蝗虫的最佳时期是在蝗虫的成虫期
C. 适当延长家蚕的幼虫期有助于提高蚕丝的产量
D. 蜜蜂的发育要经过卵、幼虫、蛹、成虫4个时期
A.卵→幼虫→蛹→成虫 | B.幼虫→卵→蛹→成虫 |
C.卵→若虫→成虫 | D.卵→蛹→幼虫→成虫 |
A.椒草的叶能发出芽和根,长成新植株 |
B.玉米种子能萌发,长成新植株 |
C.马铃薯块茎的芽眼里能发芽,长成新植株 |
D.柳条插在土里能生根,长成新植株 |
A.鸡蛋放置时间太长 |
B.孵化的温度等条件未能达到标准 |
C.鸡蛋没有进行受精 |
D.这种鸡不能以孵卵的方式繁殖后代 |
A.蝉的鸣叫是一种求偶行为 |
B.这层“皮”是蝉的外骨骼 |
C.蝉的发育经历了卵、幼虫、蛹、成虫四个阶段 |
D.蝉的发育过程属于不完全变态发育 |
2.选择题- (共5题)
Mr Brown was going away for a week. Before he left, he said to his son, "if anyone asks for me, you can tell him that your father has been out for doing something, and will be back in a week, then be sure to ask him to sit down for a cup of tea."
"OK, Dad," said his son. But he was afraid his son couldn’t remember this, he wrote these words down on a piece of paper and gave it to him. His son put it into his small pocket, took it out and looked at it every now and then.
Four days passed, but no one came to see his father. The boy thought that there was no man to come and that the piece of paper was of no more use for him, so he burnt it that evening.
The next afternoon, someone knocked at the door. The boy opened it. A man was standing at the door and said, "Where is your father?" The boy put his hand into his pocket at once and looked for the piece of paper. He could not find it. He suddenly remembered he had burnt it, so he shouted, "No more."
The man was very surprised. He asked, "No more? I met your father last week. When did it happen?"
"Burnt yesterday evening."
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【1】题量占比
单选题:(43道)
选择题:(5道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:24
7星难题:0
8星难题:18
9星难题:1