Trong trường hợp nào dưới đây có thể xảy ra hiện tượng quang điện? Ánh sáng Mặt trời chiếu vào :

A. mặt nước biển

B. cốc sứ

C. mái ngói

D. tấm kim loại không sơn.

Choose the letter A, B, C or D to answer these following questions

Nga lives in the city. Every morning she gets up at 6. 30. She brushes her teeth. She washes her face. She has a big breakfast. Then she gets dressed. She goes to school at 6:30. She is in grade 6. Her classroom is on the second floor. It is very big. There are 42 students in her class. She loves her friends and teachers very much.

Where is her classroom?

A. On the third floor     

B. On the second floor

C. On the first floor

D. On the fourth floor

Choose the letter A, B, C or D to answer these following questions

Nga lives in the city. Every morning she gets up at 6. 30. She brushes her teeth. She washes her face. She has a big breakfast. Then she gets dressed. She goes to school at 6:30. She is in grade 6. Her classroom is on the second floor. It is very big. There are 42 students in her class. She loves her friends and teachers very much.

Where does Nga live?

A. She lives in the urban areas.

B. She lives in the countryside.

C. She lives in a beautiful house.

D. She lives in a poor hometown.

Nước tiểu chính thức sau khi được tạo thành được chuyển đến đâu đầu tiên?

A. Bể thận

B. ống thận

C. ống dẫn nước tiểu

D. thải ra ngoài môi trường

Choose the letter A, B, C or D to complete the passage below

Thu Phuong is a ……..(6)………..of Chu Van An primary school. She is 12. She is …….(7)…… grade 6, class 6B. Her school is very a big school in Hai Phong. It has 5 floors with over 30 classrooms. ……..(8)………. are 45 students in each class. Her classroom is ….(9)…. the third floor. It's a big, clean and bright room. It has two doors …..(10)……… four windows. Phuong loves her school very much

Question 10

A. between

B. as well

C. and

D. along

Điều nào dưới đây là đúng khi nói về nước tiểu đầu?

A. Nồng độ các chất hòa tan đậm đặc

B. Gần như không chứa chất dinh dưỡng

C. Chứa ít các chất cặn bã và các chất độc

D. Có chứa các tế bào máu và protein