user-avatar
dinhlan788
2 năm trước
đưa một số tế bào nấm men vào bình nuôi cấy ở điều kiện tối ưu sau 2h55p thu được 32.10^2 tế bào mới. số tế bào nấm men đưa vào bình nuôi cấy là bao nhiêu? biết thời gian thế hệ của nước này là 25phút A. 20 B.25 C.30 D.15
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

In the modern world, people depend on energy to power their everyday lives. A wide range of power-run devices and modern conveniences (1)………….and although it may seem that we will not be in danger of living without those conveniences, the fact is that many supplies of energy are running out rapidly. Scientists are constantly (2)………….new sources of energy to keep modern society running. Whether furture populations will continue to enjoy the benefits of abundant energy will depend (3 ………….the success of this search. Coal, oil and natural gas are now being used widely. (4)…………., these supplies are limited, and they are a major source of pollution. Therefore, the existing alternative energy sources must be improved or further explored and developed. These include nuclear, water, solar, and wind power, as well as energy from new, (5)…………. Types of fuels. Each of these , however, has advantages and disadvantages. 1. A. are used B. used to C. are using D. use 2. A. looking into B. searching for C. researching D. finding 3. A. on B. for C. with D. in 4. A. Moreover B. Because C. Although D. However 5. A. polluting B. polluted C. nonpolluting D. pollution

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team