I’m yunshu

2.The following appeared in a letter sent by a committee of homeowners from the Deerhaven Acres to all homeowners in Deerhaven Acres.
“Seven years ago, homeowners in nearby Brookville community adopted a set of restrictions on how the community’s yards should be landscaped and what colors the exteriors of homes should be painted. Since then, average [...]

59.太阳黑子与流行感冒
The following appeared in an article in the health section of a newspaper.
“According to the available medical records, the six worst worldwide flu epidemics during the past 300 years occurred in 1729, 1830, 1918, 1957, 1968, and 1977. These were all years with heavy sunspot activity-that is, years when the Earth received significantly more solar [...]