举一反三
- ___ is a portable computer with an LCD touchscreen and a rechargeable battery but it lacks the power of a real PC cell.
- “PC”is short for( ) A: potato chips B: portable computer C: personal computer D: both B and C
- Cell organelles are located within the ____ of the cell. A: nucleus B: cytoplasm C: Cell membrane D: lysosomes
- Two-cell mature pollen consists of a vegetative cell and a germ cell.
- When a cell is placed in higher water potential solution, . A: Water enters the cell. B: Water exits the cell toward the solution. C: Water enters and solute exits the cell. D: None of the above is correct.
内容
- 0
Normally, the aircraft battery and the APU battery supply power for different parts or systems on an aircraft.
- 1
______ are belonging to energy storage battery. A: lead acid battery B: Li-ion battery C: solar cell D: nickel metal hydride battery
- 2
The<br/>main morphological characteristics of serous nuclei are as follows() A: The<br/>nucleus is round, at the bottom of the cell base. B: The<br/>nucleus is oblate, at the bottom of the cell base. C: The<br/>nucleus is round, at the center of the cell. D: The<br/>nucleus is oblate, at the center of the cell. E: The<br/>nucleus is at the top of the cell.
- 3
Which of the following items are not valuables? A: Laptop B: cash C: Portable battery D: jewelry
- 4
The power supply system contains battery and alternator．