皮皮学，免费搜题
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【单选题】
下列哪项被称为现代分子生物学诞生的里程碑?
A.
Chargff 规则
B.
遗传规律
C.
DNA双螺旋
D.
PCR技术
E.
HGP（人类基因组计划）
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举一反三
【单选题】What can be inferred from the fourth paragraph?
A.
Farm areas accept waste from the city in modern society.
B.
There is cheap land to bury waste in modem society.
C.
It is difficult to find space to bury waste in modem society.
D.
Ways to deal with waste in modem society is similar to that of the past.
查看完整题目与答案
【单选题】What can be inferred from the fourth paragraph?
A.
Farm areas accept waste from the city in modern society.
B.
There is cheap land to bury waste in modern society.
C.
It is difficult to find space to bury waste in modern society.
D.
Ways to deal with waste in modern society stay the same.
查看完整题目与答案
【单选题】已知 25 °C 时 , 某二元弱酸 H 2 A 的 K a1 θ = 1.0×10-7 , K a2 θ = 1.0×10 -14 , 则 0.10mol ・ kg -1 H 2 A 溶液中 A 2– 的浓度约为 1.0×10 -14 mol·Kg -1 ; 在 0.10 mol·Kg -1 H 2 A 和 0.10 mol·Kg -1 盐酸混合溶液中 A 2- 的浓度约为( )。
A.
5.6×10 -16 mol·Kg -1
B.
1.6.0×10 -18 mol·Kg -1
C.
1.0×10 -20 mol·Kg -1
D.
2.1×10 -19 mol·Kg -1
查看完整题目与答案
【简答题】How can waste from living things be reused?
查看完整题目与答案
【单选题】What can an exhaust system do if it is efficient?
A.
It can prevent the waste gas from escaping.
B.
It can let the waste gas and compound escape quickly out of it.
C.
It can prevent the engine from producing waste gas.
D.
It can store as much waste gas as possible.
查看完整题目与答案
【简答题】What can be inferred from the fourth paragraph? [A] Farm areas accept waste from the city in modem society. [B] There is cheap land to bury waste in modem society. [C] It is difficult to find space to...
查看完整题目与答案
【单选题】已知 25 °C 时 , 某二元弱酸 H 2 A 的 K a1 θ = 1.0×10 -7 , K a2 θ = 1.0×10 -14 ,则 0.10mol ・ kg -1 H 2 A 溶液中 A 2– 的浓度约为( ) ; 在 0.10 mol·Kg -1 H 2 A 和 0.10 mol·Kg -1 盐酸混合溶液中 A 2- 的浓度约为 1.0×10 -20 mol·Kg -1 。
A.
1.0×10 -14 mol·Kg -1
B.
1.3×10 -14 mol·Kg -1
C.
2.1×10 -14 mol·Kg -1
D.
3.1×10 -14 mol·Kg -1
查看完整题目与答案
【简答题】有关的技术分析著作常将缺口划分为??、??、持续性缺口和消耗性缺口四种形态。
查看完整题目与答案
【单选题】What can be inferred from the fourth paragraph?
A.
Farm areas accept waste from the city in modem society.
B.
There is cheap land to bury waste in modem society.
C.
It is difficult to find space to bury waste in modem society.
D.
Ways to deal with waste in modem society stay the same.
查看完整题目与答案
【判断题】有关的技术分析著作常将缺口划分为普通缺口、突破缺口、持续性缺口和消耗性缺口四种形态。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】What can be inferred from the fourth paragraph?
A.
Farm areas accept waste from the city in modern society.
B.
There is cheap land to bury waste in modem society.
C.
It is difficult to find space to bury waste in modem society.
D.
Ways to deal with waste in modem society is similar to that of the past.
查看完整题目与答案
【单选题】What can be inferred from the fourth paragraph?
A.
Farm areas accept waste from the city in modern society.
B.
There is cheap land to bury waste in modern society.
C.
It is difficult to find space to bury waste in modern society.
D.
Ways to deal with waste in modern society stay the same.
查看完整题目与答案
【单选题】已知 25 °C 时 , 某二元弱酸 H 2 A 的 K a1 θ = 1.0×10-7 , K a2 θ = 1.0×10 -14 , 则 0.10mol ・ kg -1 H 2 A 溶液中 A 2– 的浓度约为 1.0×10 -14 mol·Kg -1 ; 在 0.10 mol·Kg -1 H 2 A 和 0.10 mol·Kg -1 盐酸混合溶液中 A 2- 的浓度约为( )。
A.
5.6×10 -16 mol·Kg -1
B.
1.6.0×10 -18 mol·Kg -1
C.
1.0×10 -20 mol·Kg -1
D.
2.1×10 -19 mol·Kg -1
查看完整题目与答案
【简答题】How can waste from living things be reused?
查看完整题目与答案
【单选题】What can an exhaust system do if it is efficient?
A.
It can prevent the waste gas from escaping.
B.
It can let the waste gas and compound escape quickly out of it.
C.
It can prevent the engine from producing waste gas.
D.
It can store as much waste gas as possible.
查看完整题目与答案
【简答题】What can be inferred from the fourth paragraph? [A] Farm areas accept waste from the city in modem society. [B] There is cheap land to bury waste in modem society. [C] It is difficult to find space to...
查看完整题目与答案
【单选题】已知 25 °C 时 , 某二元弱酸 H 2 A 的 K a1 θ = 1.0×10 -7 , K a2 θ = 1.0×10 -14 ,则 0.10mol ・ kg -1 H 2 A 溶液中 A 2– 的浓度约为( ) ; 在 0.10 mol·Kg -1 H 2 A 和 0.10 mol·Kg -1 盐酸混合溶液中 A 2- 的浓度约为 1.0×10 -20 mol·Kg -1 。
A.
1.0×10 -14 mol·Kg -1
B.
1.3×10 -14 mol·Kg -1
C.
2.1×10 -14 mol·Kg -1
D.
3.1×10 -14 mol·Kg -1
查看完整题目与答案
【简答题】有关的技术分析著作常将缺口划分为??、??、持续性缺口和消耗性缺口四种形态。
查看完整题目与答案
【单选题】What can be inferred from the fourth paragraph?
A.
Farm areas accept waste from the city in modem society.
B.
There is cheap land to bury waste in modem society.
C.
It is difficult to find space to bury waste in modem society.
D.
Ways to deal with waste in modem society stay the same.
查看完整题目与答案
【判断题】有关的技术分析著作常将缺口划分为普通缺口、突破缺口、持续性缺口和消耗性缺口四种形态。
A.
正确
B.
错误
查看完整题目与答案