Problem: USB:

Two types of charging port exist: the charging downstream port (CDP), supporting data transfers as well, and the dedicated charging port (DCP), without data support. A portable device can recognize the type of USB port; on a dedicated charging port, the D+ and D− pins are shorted with a resistance not exceeding 200 ohms, while charging downstream ports provide additional detection logic so their presence can be determined by attached devices. (see ref pg. 2, Section 1.4.5, & Table 5-3 "Resistances"—pg. 29).

How many types of charging ports exist?
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A: Two types


Problem: Dutch Republic:

Beginning in the 18th century, the situation changed from more or less active persecution of religious services to a state of restricted toleration of other religions, as long as their services took place secretly in private churches.

Where was active persecution taking place?
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A: unanswerable


Problem: Airport:

The distances passengers need to move within a large airport can be substantial. It is common for airports to provide moving walkways and buses. The Hartsfield–Jackson Atlanta International Airport has a tram that takes people through the concourses and baggage claim. Major airports with more than one terminal offer inter-terminal transportation, such as Mexico City International Airport, where the domestic building of Terminal 1 is connected by Aerotrén to Terminal 2, on the other side of the airport.

What is it common for airports with a tram to offer?
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A: unanswerable


Problem: Literature:

Drama is literature intended for performance. The form is often combined with music and dance, as in opera and musical theatre. A play is a subset of this form, referring to the written dramatic work of a playwright that is intended for performance in a theatre; it comprises chiefly dialogue between characters, and usually aims at dramatic or theatrical performance rather than at reading. A closet drama, by contrast, refers to a play written to be read rather than to be performed; hence, it is intended that the meaning of such a work can be realized fully on the page. Nearly all drama took verse form until comparatively recently.

What forms of drama combine with music and motion?
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A:
unanswerable