Contemporary a cappella includes many vocal groups and bands who add vocal percussion or beatboxing to create a pop/rock/gospel sound, in some cases very similar to bands with instruments. Examples of such professional groups include Straight No Chaser, Pentatonix, The House Jacks, Rockapella, Mosaic, and M-pact. There also remains a strong a cappella presence within Christian music, as some denominations purposefully do not use instruments during worship. Examples of such groups are Take 6, Glad and Acappella. Arrangements of popular music for small a cappella ensembles typically include one voice singing the lead melody, one singing a rhythmic bass line, and the remaining voices contributing chordal or polyphonic accompaniment.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What has maintained a strong presence in all types of worship?
Ah, so.. unanswerable

The Government was known officially as the Council of People's Commissars (1917–1946), Council of Ministers (1946–1978) and Council of Ministers–Government (1978–1991). The first government was headed by Vladimir Lenin as "Chairman of the Council of People's Commissars of the Russian SFSR" and the last by Boris Yeltsin as both head of government and head of state under the title "President".
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When the Soviet Union started in 1991, what was the RSFSR government called?
Ah, so.. unanswerable

Unlike previous versions of Windows, Windows 8 was distributed at retail in "Upgrade" licenses only, which require an existing version of Windows to install. The "full version software" SKU, which was more expensive but could be installed on computers without an eligible OS or none at all, was discontinued. In lieu of full version, a specialized "System Builder" SKU was introduced. The "System Builder" SKU replaced the original equipment manufacturer (OEM) SKU, which was only allowed to be used on PCs meant for resale, but added a "Personal Use License" exemption that officially allowed its purchase and personal use by users on homebuilt computers.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did the System Builder SUK take the place of?
Ah, so..
unanswerable