Vì nếu không khai thác tài nguyên cẩn thận thì sẽ không còn tài nguyên

Sản lượng nhiều ngành công nghiệp đứng đầu thế giới: than, thép, xi măng, phân đạm.

cái này copy được

1. Study hard or you will fail the exam.

a. If you didn't study hard, you wouldn't fail the exam

b. If you study harder, you won't pass the exam.

c. If you don't study hard, you will fail the exan.

d. If you studied hard, you will pass the exam.

2.'I'm going on the Internet now' Minh said.

a. Minh said he is going on the Internet now.

b. Minh said I am going on the Internet now.

c. Minh said us he was going in the Internet ther.

d. Minh told us he was going on the Internet then.

3. My daughter is looking forward to seeing her friends again.

a. My daughter is expecting to see her friends again.

b. My daughter feels bored because she is going to see hei friends.

c. My daughter doesn't want to see her friends again.

d. My daughter always like seeing her friends.

4. Why don't you use a password to protect your files? An said to me.

a. An advised me to usc a password to protect your files

b. An suggested me using a password to protect my files

c. An encouraged me to use a password to protect my files

d. An asked me why I didn't use a password to protect my files.

5. You haven't seen Mary today, have you?

a. You haven't seen Mary so far

b. Have you ever met Mary before?

c. Have you seen Mary today by any chance?

d. Are you going to see Mary today?

Lương Thế Vinh

Nguyễn Trãi

vua Lê Thánh Tông 

Lê Văn Hưu

lỗi

quãng đường từ A đến B là

       3 x 10000=3(km)

D/S:3 km

y:1/4=1-1/7

y   =4/7-1/4

y   =1/7

wow

Tham khảo:Phải mạnh dạn đi đó đi đây mới mở rộng tầm hiểu biết, mới mau khôn lớn, vững vàng. Con suy nghĩ lựa chọn đáp án đúng. Ý nghĩa câu chuyện Đôi cánh của Ngựa Trắng đó là: Phải mạnh dạn đi đó đi đây mới mở rộng tầm hiểu biết, mới mau khôn lớn, vững vàng.

Đặt 

=>(x+1)(5x+4)=0