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【单选题】
假说——演绎法是现代科学研究中常用的方法，包括“提出问题、作出假设、演绎推理、检验推理、得出结论”五个基本环节。利用该方法，孟德尔发现了两个遗传规律。下列关于孟德尔的研究过程的分析错误的是（）A.
提出问题是建立在豌豆纯合亲本杂交和F1自交遗传实验基础上的
B.
孟德尔所作假设的核心内容是“性状是由位于染色体上的基因控制的”
C.
为了验证所作出的假设是否正确，孟德尔设计并完成了测交实验
D.
孟德尔发现的两大遗传定律使用的范围是有性生殖的真核生物的核基因。
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【单选题】We can invent computers (capable) of processing ten million calculations per second.
A.
有能力的；能干的
B.
宽敞的
C.
大写的
【简答题】A．We can invent ways of increasing rainfall. B．We can develop ways of reusing water and utilizing sea water. C．We can cut down our consumption of water. D．We can reduce the number of factories produci...
【简答题】A．We can invent ways of increasing rainfall. B．We can develop ways of reusing water and utilizing sea water. C．We can cut down our consumption of water. D．We can reduce the number of factories produci...
【简答题】A．We can invent ways of increasing rainfall. B．We can develop ways of reusing water and utilizing sea water, C．We can cut down our consumption of water. D．We can reduce the number of factories produci...
【单选题】——would you like to go and see the film with me this evening?——I am sorry, I can’t because I ____
A.
18．——would you like to go and see the film with me this evening? ——I am sorry, I can’t because I ________my homework. A．does
B.
did
C.
am doing
D.
has done
【单选题】I’m sorry I can’t cook for you because the supply of gas ____.
A.
has run down
B.
has run away
C.
has run into
D.
has run out
【简答题】Why shouldn’t you be nervous? Because it may affect your _________________________________.
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