To take out the useful parts of the food, the digestive system breaks the food down into small pieces. This process is called digestion. The parts of the food which are not useful just pass through the body.
The interrogation. Interrogations consist of three pulses, 0.8 Î¼s in duration, referred to as P1, P2 and P3. The timing between pulses P1 and P3 determines the mode (or question) of the interrogation, and thus what the nature of the reply should be. P2 is used in side-lobe suppression, explained later.
The TOEFL IBT test takes about 4 hours to complete. At minimum, the TOEFL IBT will last 3 hours and 10 minutes. At maximum, it will take 4 hours and 20 minutes. The length varies because the Reading section can take from 60 to 100 minutes, and the Listening section ranges from 60 to 90 minutes.