<u>Answer:
</u>
The study carried out by Dr. Xu is a randomized controlled study.
<u>Explanation:</u>
- For the sake of determination of how the results of the students change by doing certain changes to the examination pattern, Dr. Xu devised that the change is considerably evident.
- Dr. Xu provided and intervention in the process of exam in the form of guides which helped the students to score better later. Hence, from the standard of conduct of the study, it can be said to be a randomized controlled study.
I think that a territory could become a state when it reaches a population of 150,000.
Short Answer:
George Washington wanted to stay as a neutral party and not be involved in a war with Britain again.
Longish answer:
George Washington chose to stay as a neutral party because they were still slightly recovering from the independent war, but since both sides started to legally kidnap their soldiers and force them to fight for their armies. Thus America was forced into the war.
Answer:
B suppressed the issue of slavery and abolition at the the time
Explanation: