In a strong magnetic field, half protons point to the patient`s feet and half to the head. All the protons are matched.
举一反三
- The wind was so strong that it tore the flag ______. A: by half B: at half C: in half D: by halves
- The<br/>magnetic field lines are used to visually describe the distribution<br/>of the magnetic field around the magnet. For the following<br/>statement,( <br/>) is wrong. A: Each<br/>magnetic field line is a closed loop curve B: No<br/>two magnetic field lines can cross each other C: The<br/>length of the magnetic field line reflects the strength of the<br/>magnetic field D: The<br/>tangential direction of any point on any of the magnetic lines is the<br/>direction of the magnetic field at that point
- Yesterday we had （） talk. A: Aone and a half hour’s B: Bone and a half hour C: Can hour and a half’s D: Dan hour’s and a half
- The apple is too big , let’s cut it [u] [/u] . A: in half B: to half C: into half D: at half
- It is about ______ walk from here to the office. A: half an hour's B: half a hour's C: half an hours'