Cho m gam hỗn hợp X gồm axit glutamic và lysin tác dụng với dung dịch HCl (dư), sau phản ứng hoàn toàn làm bay hơi cẩn thận dung dịch, thu được (m + 18,25) gam muối khan. Nếu cho m gam X tác dụng với dung dịch NaOH (dư), kết thúc phản ứng tạo ra (m + 8,8) gam muối. Giá trị của m là

A. 58,7

B. 58,5

C. 44,0

D. 43,9.

2.khoanh dap an(a)

3.khoanh dap an(a)

4.khoanh dap an(b)

5.I don't no

6.khoanh cau (b)

77.khoanh dap an(a)

I doon't no

"one" tick?

S=1/1-1/4+1/4-1/7+...1/94-1/97+1/97-1/100

chung ta se gach het so doi di va con lai hai phan so do la:1/1--1/100=100/100-1/100

=99/100

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Had he known more about the information technology, he would have invested in some computer companies.

A. Not knowing about the information technology help him invest in some computer company. 

B. He didn't know much about the information technology and he didn't invest in any computer companies. 

C. Knowing about the information technology, he would have invested in some computer companies. 

D. He would have invested in some computer companies without his knowledge of the information technology.