So sánh độ lớn suất điện động của pin quang điện với suất điện động của pin hóa học.

\(\Rightarrow x-1=2011\)\(\Rightarrow x=2011+1=2012\)

\(\Rightarrow x-1=-2011\Rightarrow x=-2011+1=-2010\)

Cho hỗn hợp khí CO₂ và SO₂ chỉ dùng một thuốc thử nào sau đây hãy nhận biết 2 khí trên:

A. dd NaOH 

B. dd quì tím 

C. dd Br₂ 

D. dd Ca(OH)₂

Bào quan của tế bào thực hiện quá trình quang hợp, tổng hợp chất hữu cơ là gì?

A. Lục tạp.

B. Ty thể.

C. Bộ máy gongi. 

D. Lizoxom

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Criticism

It can take a long time to become successful in your chosen field, however talented you are. One thing you have to be (23)__________of is that you will face criticism along the way. The world is full of people who would rather say something negative than positive. If you’ve made up your mind to achieve a certain goal such as writing a novel, don’t let the negative criticism of others prevent you from reaching your purpose and let constructive criticism have a positive (24)_______on your work. If someone says you’re totally lacking talent, ignore them. That’s negative criticism. If, however, someone advises you to revise your work and gives you good reasons for doing so, you should (25)_________their suggestions carefully. There are many film stars (26)___________were once out of job. There are many famous novelists who made a complete mess of their first novel - or who didn’t, but had to keep on approaching hundreds of publishers before they could get It published. Being successful does depend on luck, to a certain extent. But things are more likely to turn (27)______well if you persevere and stay positive.

Điền vào ô trống 26

A. which

B. whom

C. when

D. that

I thought the party ___________________ really well.

A. came off          

B. came up  

C. came about       

D. came across