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【单选题】
干管安装，一般在（ ）安装完毕以后进行。A.
支架
B.
阀门
C.
仪表
D.
水龙头
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举一反三
【单选题】The diagram shows an animal cell which is undergoing mitotic division. Which stage of mitosis has been reached?
A.
anaphase
B.
metaphase
C.
prophase
D.
telophase
【单选题】The diagram shows an experiment to demonstrate the movement of molecules. After one hour, the water in the beaker turned red. What is the most likely reason for this colour change?
A.
Molecules of red ink move through the membrane by diffusion.
B.
Molecules of red ink move through the membrane by osmosis.
C.
Molecules of water move through the membrane by diffusion.
D.
Molecules of water move through the membrane by osmosis
【单选题】The diagram shows an animal whose scientific name is Falco peregrinus . To which species does it belong?
A.
bird
B.
F . peregrinus
C.
Falco
D.
vertebrate
【单选题】The diagram shows the effect of an enzyme working in the human digestive system . What would reduce the rate of production of amino acids?
A.
removing the amino acids as they are formed
B.
increasing the amount of protein
C.
raising the temperature to 37.1 ° C
D.
raising the pH to 7.5
【单选题】如果一次课的教学任务是在复习巩固旧知识的基础上学习新知识,下列那种教学方法组合比较适宜( )
A.
谈话法+讨论法
B.
读书指导法+讨论法
C.
谈话法+讲授法
D.
读书指导法+谈话法
E.
读书指导法+讲授法
【简答题】下列属于非侵染性病害的有( )A. 植物冻害 B.高温日灼 C.2，4-D造成的药害 D. 机械损伤
【单选题】The diagram shows a shift in the aggregate demand curve of an economy from AD1 to AD2 What could have caused this shift?
A.
an increase in expenditure on imports
B.
an increase in government tax rates
C.
an increase in the international trade deficit
D.
an increase in the money supply
【单选题】如果一次课的教学任务是在复习巩固旧知识的基础上学习新知识,下列那种教学方法组合比较适宜
A.
谈话法+讨论法
B.
读书指导法+讨论法
C.
谈话法+讲授法
D.
读书指导法+谈话法
【单选题】如果一次课的教学任务是在复习巩固旧知识的基础上学习新知识,下列哪种教学方法组合比较适宜( )
A.
谈话法+讨论法
B.
读书指导法+讨论法
C.
谈话法+讲授法
D.
读书指导法+谈话法
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