Simulation and experimental studies _____, which show that the axial ratio bandwidth of the antenna is directly proportional to the thickness of the substrate.? have been performed|;is performed;;|was performed;;|were performed;
have been performed
举一反三
- Which of the following positions must the patient be in, when being performed CPR
- Hearing is the ability performed by (______) to detect (______).
- When was the Tibetan opera performed?
- 智慧职教: Which of the following should not be performed by the holder of a GMDSS GOC certificate?
- Lang Lang, the famous __________, once performed
内容
- 0
The lion dance is performed by ten dancers.
- 1
Next Monday is Mary’s birthday. She ________ magic at the birthday party. A: is going to perform B: shall perform C: is performed D: performed
- 2
All the major actors and actresses have properly been chosen and they have performed very well in the film, according to tthe review. A: T B: F
- 3
After taking the training course, they have performed their duties much (well) _____ than before.
- 4
Off-Line Diagnostics are manual diagnostics which are intended for thorough maintenance performed by trained technicians.