Problem: Standard Chinese (Mandarin) has stops and affricates distinguished by aspiration: for instance, /t tʰ/, /t͡s t͡sʰ/. In pinyin, tenuis stops are written with letters that represent voiced consonants in English, and aspirated stops with letters that represent voiceless consonants. Thus d represents /t/, and t represents /tʰ/.
Mandarin has stops and affricates that are distinguished by what?
The answer is the following: aspiration

Problem: If there are differences within a growth ring, then the part of a growth ring nearest the center of the tree, and formed early in the growing season when growth is rapid, is usually composed of wider elements. It is usually lighter in color than that near the outer portion of the ring, and is known as earlywood or springwood. The outer portion formed later in the season is then known as the latewood or summerwood. However, there are major differences, depending on the kind of wood (see below).
If a growth ring has differences over one season, would the part nearest the tree's center be narrower or wider?
The answer is the following: wider

Problem: The chapter house has an original mid-13th-century tiled pavement. A door within the vestibule dates from around 1050 and is believed to be the oldest in England.[citation needed] The exterior includes flying buttresses added in the 14th century and a leaded tent-lantern roof on an iron frame designed by Scott. The Chapter house was originally used in the 13th century by Benedictine monks for daily meetings. It later became a meeting place of the King's Great Council and the Commons, predecessors of Parliament.
What kind of tiled pavement is in the chapter house?
The answer is the following: mid-13th-century

Problem: In countries like Iran, Finland, Malaysia, Portugal, Singapore or the United Kingdom, there is often a significant and confused distinction between polytechnics and universities. In the UK a binary system of higher education emerged consisting of universities (research orientation) and Polytechnics (engineering and applied science and professional practice orientation). Polytechnics offered university equivalent degrees from bachelor's, master's and PhD that were validated and governed at the national level by the independent UK Council for National Academic Awards. In 1992 UK Polytechnics were designated as universities which meant they could award their own degrees. The CNAA was disbanded. The UK's first polytechnic, the Royal Polytechnic Institution (now the University of Westminster) was founded in 1838 in Regent Street, London. In Ireland the term institute of technology is the more favored synonym of a regional technical college though the latter is the legally correct term; however, Dublin Institute of Technology is a university in all but name as it can confer degrees in accordance with law, Cork Institute of Technology and another of other Institutes of Technology have delegated authority from HETAC to make awards to and including master's degree level—Level 9 of the National Framework for Qualifications (NFQ)—for all areas of study and Doctorate level in a number of others.
What is the name of the Royal Polytechnic Institution now?
The answer is the following:
University of Westminster