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现在大多数同学都能拥有一个自己的房间。下面请你跟我一起踏上一次数学推算之旅，探究少生、晚育与控制人口数量的关系。真是不算不知道，一算吓一跳。 (1)假设一：在你的班级里有这样三个家庭，同学甲的家庭里每只生育一个后代，同学乙的家庭里每为双胞胎，同学丙的家庭里每为三胞胎。假设25岁生育，100年后三个家庭都拥有了第四代，若要保证每人一个房间的生活水准，则三个家庭的第四需要几间房间？ (2)假设二：这三个家庭每代生育后代的个数不变，但生育年龄都提前至20岁，100年后，若要保证每人一间住房的生活水准，则三个家庭这一代的孩子各需要几间房间？ (3)每次生育几胞胎通常不能由自己决定，但一生生育几次后代通常是可以控制的。请你根据以上假设的情景和推算结果的分析，说出你对我国实行计划生育政策的意义的理解。
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A.
血小板减少
B.
血小板表面相关抗体检测阳性
C.
骨髓巨核细胞计数增多或正常，伴产生血小板的巨核细胞增加
D.
泼尼松治疗有效，切脾治疗有效，血小板寿命缩短
E.
排除继发性血小板减少症
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A.
 with
B.
 have
C.
 has
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【单选题】戏剧的本质特点是()。
A.
形体
B.
声音
C.
现场交流
D.
演员
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【简答题】收到一份卫生部质控样品,尿来源于65岁女性,尿路感染。要求鉴定主要病原菌。 EMB琼脂上无色透明菌落,革兰染色:G-b 生化试验结果:氧化酶:-,苯丙氨酸脱氨酶:+,葡萄糖酸盐:-,枸橼酸盐:+,H2S:-,海藻糖:+
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【单选题】The flag of Australia has ___________. [     ]
A.
stars
B.
flowers
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【单选题】Australia ____________ beautiful beaches. [     ]
A.
have
B.
has
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【单选题】Australia has always been a continent with few people mainly because ______.
A.
Australia is too far away from Europe
B.
most of the continent is hot and dry
C.
Australia is separated from the rest of the world by seas
D.
Australia is the least mountainous and most level of the world's continents
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相关题目：
【单选题】不是ITP诊断必须符合的条件为
A.
血小板减少
B.
血小板表面相关抗体检测阳性
C.
骨髓巨核细胞计数增多或正常，伴产生血小板的巨核细胞增加
D.
泼尼松治疗有效，切脾治疗有效，血小板寿命缩短
E.
排除继发性血小板减少症
查看完整题目与答案
【简答题】Name of the Restaurant Food Price Place (far or near school) Liyuan delicious more expensive nearest Haoyun more delicious expensive nearer Meiwei most delicious most expensive near Sara: Hi...
查看完整题目与答案
【单选题】Australia beautiful beaches. [     ]
A.
 with
B.
 have
C.
 has
查看完整题目与答案
【单选题】戏剧的本质特点是()。
A.
形体
B.
声音
C.
现场交流
D.
演员
查看完整题目与答案
【简答题】Every country has its favorite food. Italians like to eat pizza. Indians like to eat hot food. Japanese like to eat fish. Often they don’t cook it. In England, one of the most popular kinds of food is...
查看完整题目与答案
【简答题】Everybody wants to be healthy. You know food is very important. There are many healthy foods. You can have more bananas, apples, oranges, tomatoes and lettuce because fruits and vegetables are good fo...
查看完整题目与答案
【简答题】收到一份卫生部质控样品,尿来源于65岁女性,尿路感染。要求鉴定主要病原菌。 EMB琼脂上无色透明菌落,革兰染色:G-b 生化试验结果:氧化酶:-,苯丙氨酸脱氨酶:+,葡萄糖酸盐:-,枸橼酸盐:+,H2S:-,海藻糖:+
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【单选题】The flag of Australia has ___________. [     ]
A.
stars
B.
flowers
查看完整题目与答案
【单选题】Australia ____________ beautiful beaches. [     ]
A.
have
B.
has
查看完整题目与答案
【单选题】Australia has always been a continent with few people mainly because ______.
A.
Australia is too far away from Europe
B.
most of the continent is hot and dry
C.
Australia is separated from the rest of the world by seas
D.
Australia is the least mountainous and most level of the world's continents
查看完整题目与答案
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