1.综合题- (共2题)

(1)双眼皮基因用“A”表示,单眼皮基因用“a”表示.如果一对夫妇,父亲的基因组成是“aa”,其性状为单眼皮;母亲的基因组成是“Aa“,其性状为双眼皮.请据图回答:
(2)卵细胞②的基因组成为________.
(3)子女③的基因组成为___A_____,③的性状为________(填“单眼皮”或“双眼皮”).
根据材料回答下列问题:
(1)医务人员通过对患者取样分析,发现致病元凶是一种没有细胞结构、仅由蛋白质外壳和遗传物质构成的生物,这种病的的病原体属于 (选填“细菌”、“真菌”或“病毒”)。
(2)发生该传染病后,学校立即对所有教室、宿舍等进行消毒,这是预防传染病流行措施中的 。
(3)小张接种过乙肝疫苗,他认为自己体内有抗体,不会患上这种传染病。他的这种想法对吗?为什么?
(4)为了预防这种传染病,请你根据所学过的知识,对班上的同学提出一条合理化的建议:
2.选择题- (共2题)
A Policeman and a Thief
One day a policeman was taking a thief to the city . On the way , they saw a shop . The thief said . “ Let me go into the shop to buy some bread . We can eat it in the train . ”
The policeman agreed . The thief went into the shop and ran out of the back door . When the policeman knew that , he began to look for the thief everywhere . At last the policeman caught(抓获) thief again . They went on to the city . On the way they came to the same shop . The thief wanted to buy some bread again . “Oh , no . ” said the policeman , “You did that before , and you ran away . This time I’ll go into the shop and buy bread . You must wait here for me . ”
A Policeman and a Thief
One day a policeman was taking a thief to the city . On the way , they saw a shop . The thief said . “ Let me go into the shop to buy some bread . We can eat it in the train . ”
The policeman agreed . The thief went into the shop and ran out of the back door . When the policeman knew that , he began to look for the thief everywhere . At last the policeman caught(抓获) thief again . They went on to the city . On the way they came to the same shop . The thief wanted to buy some bread again . “Oh , no . ” said the policeman , “You did that before , and you ran away . This time I’ll go into the shop and buy bread . You must wait here for me . ”
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【1】题量占比
综合题:(2道)
选择题:(2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:1
7星难题:0
8星难题:0
9星难题:1