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- reacções redoxAs reacções redox são de extrema importância na técnica de obtenção e purificação dos metais, como a produção industrial do ferro bruto. O ferro é um dos metais mais abundantes na terra. Contudo, o ferro não existe na forma livre, mas sim de forma combinada em minérios, como , por exemplo, os...0 Answers 0 Acciones
- A juventude é a época de se estudar a sabedoria; a velhice é a época de a praticar.
– Jean-Jacques RousseauA juventude é a época de se estudar a sabedoria; a velhice é a época de a praticar. – Jean-Jacques Rousseau0 Answers 0 Acciones - …………….. Joe arrived at the cinema, the film had finished.
A. While
B. As soon as
C. By the time
D. As
E. Whenever…………….. Joe arrived at the cinema, the film had finished. A. While B. As soon as C. By the time D. As E. Whenever0 Answers 0 Acciones - Most people’s………………of living has improved dramatically in the last 50 years.
A. level
B. method
C. style
D. pattern
E. standardMost people’s………………of living has improved dramatically in the last 50 years. A. level B. method C. style D. pattern E. standard0 Answers 0 Acciones - The country’s gross…………..product has increased at an annual rate of 3.1%.
A. economic
B. financial
C. internal
D. domestic
E. externalThe country’s gross…………..product has increased at an annual rate of 3.1%. A. economic B. financial C. internal D. domestic E. external0 Answers 0 Acciones - All the computers in the company are on a single…………….
A. network
B. link
C. connection
D. alliance
E. designAll the computers in the company are on a single……………. A. network B. link C. connection D. alliance E. design0 Answers 0 Acciones - He attempted to …………….. the customs officer to let him through.
A. tip
B. buy
C. fine
D. pay
E. bribe
He attempted to …………….. the customs officer to let him through. A. tip B. buy C. fine D. pay E. bribe0 Answers 0 Acciones - My bank account is finally back in the ……………. .
A. blue
B. green
C. brown
D. black
E. greyMy bank account is finally back in the ……………. . A. blue B. green C. brown D. black E. grey0 Answers 0 Acciones - I’m saving up so that I have a decent ……………. when I’m old.
A. pocket money
B. account
C. assistance
D. deposit
E. pensionI’m saving up so that I have a decent ……………. when I’m old. A. pocket money B. account C. assistance D. deposit E. pension0 Answers 0 Acciones