Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Botswana–South Africa border
Table title:
Crossings
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Botswana </th><th colspan=2 rowspan=1 > South Africa </th><th colspan=1 rowspan=2 > Opening hours </th><th colspan=1 rowspan=2 > Notes </th><th colspan=1 rowspan=2 > Geographical coordinates </th></tr>
<tr> <th colspan=1 rowspan=1 > Road </th><th colspan=1 rowspan=1 > Border post </th><th colspan=1 rowspan=1 > Road </th><th colspan=1 rowspan=1 > Border post </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Twee Rivieren </td><td colspan=1 rowspan=1 > R360 </td><td colspan=1 rowspan=1 > Twee Rivieren </td><td colspan=1 rowspan=1 > 07:30–16:00 </td><td colspan=1 rowspan=1 > Crossing in the Kgalagadi Transfrontier Park; tourist use only. </td><td colspan=1 rowspan=1 > 26°28′12″S 20°36′56″E / 26.4701°S 20.6156°E </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Middlepits </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Middelputs </td><td colspan=1 rowspan=1 > 07:30–16:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 26°40′14″S 21°52′57″E / 26.6705°S 21.8826°E </td></tr>
<tr> <td colspan=1 rowspan=1 > B210 </td><td colspan=1 rowspan=1 > McCarthy's Rest </td><td colspan=1 rowspan=1 > R380 </td><td colspan=1 rowspan=1 > McCarthy's Rest </td><td colspan=1 rowspan=1 > 06:00–18:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 26°12′05″S 22°34′04″E / 26.2015°S 22.5679°E </td></tr>
<tr> <td colspan=1 rowspan=1 > A20 </td><td colspan=1 rowspan=1 > Makopong </td><td colspan=1 rowspan=1 > R375 </td><td colspan=1 rowspan=1 > Makopong </td><td colspan=1 rowspan=1 > 08:00–16:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 25°21′55″S 22°58′29″E / 25.3653°S 22.9747°E </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Bray </td><td colspan=1 rowspan=1 > R375 </td><td colspan=1 rowspan=1 > Bray </td><td colspan=1 rowspan=1 > 07:00–16:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 25°27′24″S 23°42′51″E / 25.4566°S 23.7141°E </td></tr>
<tr> <td colspan=1 rowspan=1 > A1 </td><td class="highlighted"  colspan=1 rowspan=1 > Ramatlabama </td><td colspan=1 rowspan=1 > N18 </td><td class="highlighted"  colspan=1 rowspan=1 > Ramatlabama </td><td colspan=1 rowspan=1 > 06:00–22:00 </td><td class="highlighted"  colspan=1 rowspan=1 > Main line of Botswana Railways also crosses the border here. </td><td colspan=1 rowspan=1 > 25°38′31″S 25°34′27″E / 25.6419°S 25.5742°E </td></tr>
<tr> <td colspan=1 rowspan=1 > A2 </td><td class="highlighted"  colspan=1 rowspan=1 > Pioneer Gate </td><td colspan=1 rowspan=1 > N4 </td><td class="highlighted"  colspan=1 rowspan=1 > Skilpadshek </td><td colspan=1 rowspan=1 > 06:00–00:00 </td><td class="highlighted"  colspan=1 rowspan=1 > Trans-Kalahari Corridor </td><td colspan=1 rowspan=1 > 25°16′32″S 25°42′50″E / 25.2756°S 25.7138°E </td></tr>
<tr> <td colspan=1 rowspan=1 > A11 </td><td colspan=1 rowspan=1 > Ramotswa </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Swartkopfontein </td><td colspan=1 rowspan=1 > 06:00–22:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 24°52′21″S 25°52′57″E / 24.8725°S 25.8826°E </td></tr>
<tr> <td colspan=1 rowspan=1 > A12 </td><td colspan=1 rowspan=1 > Tlokweng </td><td colspan=1 rowspan=1 > R47 </td><td colspan=1 rowspan=1 > Kopfontein </td><td colspan=1 rowspan=1 > 06:00–24:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 24°42′23″S 26°05′38″E / 24.7064°S 26.0939°E </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Sikwane </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Derdepoort </td><td colspan=1 rowspan=1 > 06:00–19:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 24°38′33″S 26°24′13″E / 24.6426°S 26.4035°E </td></tr>
<tr> <td colspan=1 rowspan=1 > B145 </td><td colspan=1 rowspan=1 > Parr's Halt </td><td colspan=1 rowspan=1 > R572 </td><td colspan=1 rowspan=1 > Stockpoort </td><td colspan=1 rowspan=1 > 05:00–18:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 23°24′10″S 27°21′24″E / 23.4027°S 27.3567°E </td></tr>
<tr> <td colspan=1 rowspan=1 > B140 </td><td colspan=1 rowspan=1 > Martin's Drift </td><td colspan=1 rowspan=1 > N11 </td><td colspan=1 rowspan=1 > Groblersbrug </td><td colspan=1 rowspan=1 > 06:00–22:00 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 22°59′53″S 27°56′31″E / 22.9981°S 27.9419°E </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Zanzibar </td><td colspan=1 rowspan=1 > R561 </td><td colspan=1 rowspan=1 > Zanzibar </td><td colspan=1 rowspan=1 > 08:00–16:00 </td><td colspan=1 rowspan=1 > Temp. closed – Impassable when the Limpopo is in flood. </td><td colspan=1 rowspan=1 > 22°34′19″S 28°27′59″E / 22.5719°S 28.4663°E </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Platjan </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Platjan </td><td colspan=1 rowspan=1 > 08:00–16:00 </td><td colspan=1 rowspan=1 > Impassable when the Limpopo is in flood. </td><td colspan=1 rowspan=1 > 22°29′08″S 28°50′01″E / 22.4855°S 28.8337°E </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Pontdrif </td><td colspan=1 rowspan=1 > R521 </td><td colspan=1 rowspan=1 > Pontdrif </td><td colspan=1 rowspan=1 > 08:00–16:00 </td><td colspan=1 rowspan=1 > Impassable to vehicles when the Limpopo is in flood; a cable car carries pedestrians. </td><td colspan=1 rowspan=1 > 22°12′53″S 29°08′18″E / 22.2148°S 29.1382°E </td></tr>
</table>
Question:
What are the three border crossings between Botswana and South Africa?
Answer:
The Botswana–South Africa border crossings are Skilpadshek/Pioneer Gate, on the Trans-Kalahari Corridor, and Ramatlabama, on the Botswana railway.