1.综合题- (共2题)
(1)蚱蝉俗称“知了”,生殖发育方式和蝗虫相似,属于有性生殖,_____(完全/不完全)变态发育。
(2)麻雀是常见的鸟,其生殖方式为_____(体外/体内)受精,破壳而出的维鸟为_____(早成鸟/晚成鸟)
(3)“金蝉脱壳”是说其蜕皮为成虫。蝉蜕(壳)和雄蝉均可入药,将它们收集后去净泥土、杂质,晒干保存。晒干采用的是_____(传统/现代)的食品保存方法,原理是_____水抑菌。

(1)染色体主要是由_____和DNA组成。染色体分析技术主要是检测染色体的数目和结构,正常人的体细胞中染色体为_____对。
(2)DNA是由两条长链组成,图中表示DNA的是序号_____,具有规则的_____结构。
(3)基因是DNA分子中携带遗传信息的片段。如果通过基因诊断测出某胎儿为先天性聋哑(基因组成为aa),长大后他和一个正常女孩(基因组成为Aa)结婚,所生孩子是先天性聋哑的概率是_____。
2.单选题- (共13题)
3.选择题- (共1题)
This is the first time John{#blank#}1{#/blank#}(visit)Xiao Li's hometown-Xiamen. It has been 6 years {#blank#}2{#/blank#}John and Xiao Li last saw each other and John thinks that this is one of the most{#blank#}3{#/blank#}.(attract) places that he has been to in China. Xiao Li says he feels fortunate living a city{#blank#}4{#/blank#}the coast in spite of so many{#blank#}5{#/blank#}(tour) in the summer.
There are some shopping malls from {#blank#}6{#/blank#} John could buy a few presents and a huge apartment block , but the rent for an apartment is very{#blank#}7{#/blank#}. After{#blank#}8{#/blank#}(leave)the business district , they approached the harbor.
Gulangyu Island is a gorgeous island with some interesting{#blank#}9{#/blank#}(architectural).When they stopped, they had lunch in a fish restaurant because John is{#blank#}10{#/blank#} (starve).
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【1】题量占比
综合题:(2道)
单选题:(13道)
选择题:(1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:14
7星难题:0
8星难题:0
9星难题:1