A. By recording the time people spend on TV.
B. By tracking people's living habits.
C. By using memory and fluency tests.
D. By scanning people's brains.
[单选题]What did scientists learn about earthquakes at the Rocky Mountain Arsenal?A．) They occur at about 4,000 metres below ground level.B．) The injection of water into earthquake faults prevents earthquakes from occurring.C．) They are usually caused by the
[单选题]What did the scientists do to find out if the e-nose worked?A． They presented it with all common crops..B． They fixed 13 sensors inside the device.C． They collected different damaged leaves.D． They made tests on damaged and healthy leaves.
Questions 22 and 25 are based on the news reportyou have just heard.(1) (单选题)By
[单选题]Measure （） by means of lead wire.A . the clearance of the main bearingB . the play of the miler bearingC . the gap of the main bearingD . the tolerance of the main bearing
[单选题]A． meansB． methodC． medium D measure
[单选题]What does a pyrometer measure on a diesel engine? （）A . Water temperatureB . Water pressureC . Exhaust temperatureD . Air box pressure
[单选题]What is considered as a measure of how much one has remembered?A． The length of the listB． The type of list itemsC． The time difference of relearningD． The time difference of brain working
[试题]B．ooks are to mankind what memory is to the individual. They contain the history of our race, the discoveries we have made, the accumulated knowledge and experience of ages．They picture for us the marvels and beauties of nature, help us out of difficu
[单选题]H．e did not regret saying what he did but felt that he it differently.A． could express B. would expressC． could have expressed D. must have expressed
[单选题]H．e did not regret saying what he did but felt that he it differently.A． could expressB． would expressC． could have expressedD． must have expressed