举一反三
- It was raining hard ________ they could not work in the fields. A: ; B: : C: , D: !
- Topic sentence: It is hard to travel to work by bus during the rush hour.
- We came in this field late, so we must work hard to make ________ the lost time.
- If F is a vector field, then divF is a vector field.
- An inductor stores energy in a magnetic field _________ an electric field.
内容
- 0
?________, and you will be successful.: If you work hard|To work hard|Work hard|Working hard
- 1
Complete the sentence with appropriate word.All the staff of the company _______ (work) very hard last year and 15% more profit was gained.
- 2
“Was the job difficult?” “Yes, we found ______.” A: the work hard for doing B: hard to do the work C: it hard doing the work D: the work hard to do
- 3
Which of the following explains why a magnetic field does no work on a moving charged particle?( ) A: The magnetic force depends on the speed of the particle. B: There is always an electric field that cancels the work done by the magnetic field. C: The magnetic force is always perpendicular to the direction of motion. D: The magnetic force depends on the direction of motion of the particle. E: The magnetic force is conservative.
- 4
He ____English. A: works hard for B: hard work for C: works hard at D: hard work at