【填空题】
你知道下面这些脚位的名称吗？<img style="width:300px;" data-id="8qivacopf6vkijy7rehfja" data-doctype="png" data-url="ssykt/g@3D94E5677432F63FD7EE9752F331F8F4.png" data-title="D" data-preview_url_ueditor="ssykt/g@3D94E5677432F63FD7EE9752F331F8F4.png" data-mobileurlpreview="https://file.icve.com.cn/ssykt/246/313/3D94E5677432F63FD7EE9752F331F8F4.png" data-mobileurlpagecount="1" src="https://file.icve.com.cn/ssykt/246/313/3D94E5677432F63FD7EE9752F331F8F4.png"/><img class="questionIndex" data-index="1" src="https://zjy2.icve.com.cn/common/images/question_button/BlankSpace1.gif"/>
【填空题】
在开始身体训练前，先认识舞台的方位，请将下图中小演员的身体方位填写在对应的括号中（）<img style="width:300px;" data-id="soepacopyqretwp3iyu3bg" data-doctype="png" data-url="ssykt/g@07C6F4FE1889C83D9370FFD579A25E6F.png" data-title="1" data-preview_url_ueditor="ssykt/g@07C6F4FE1889C83D9370FFD579A25E6F.png" data-mobileurlpreview="https://file.icve.com.cn/ssykt/31/445/07C6F4FE1889C83D9370FFD579A25E6F.png" data-mobileurlpagecount="1" src="https://file.icve.com.cn/ssykt/31/445/07C6F4FE1889C83D9370FFD579A25E6F.png"/><img class="questionIndex" data-index="1" src="https://zjy2.icve.com.cn/common/images/question_button/BlankSpace1.gif"/>
【单选题】
等差数列<img class="kfformula" src="20190809/1565317844150977.png" data-latex="\left \{ {{a}_{n}} \right \} "/>的首项<img class="kfformula" src="20190809/1565317844698638.png" data-latex="{a}_{1}=-2"/>，<img class="kfformula" src="20190809/1565317844536248.png" data-latex="{S}_{3}=3"/>，那么（ ）
①
<img class="kfformula" src="20190809/1565317844862924.png" data-latex="d=3"/>
②
<img class="kfformula" src="20190809/1565317844935823.png" data-latex="d=2"/>
③
<img class="kfformula" src="20190809/1565317844903124.png" data-latex="d=-2"/>
④
<img class="kfformula" src="20190809/1565317844953331.png" data-latex="d=-3"/>
【单选题】
<img class="kfformula" src="20190730/1564475645410465.png" data-latex="{5}^{-1}"/>等于（）
①
<img class="kfformula" src="20190730/1564475645509248.png" data-latex="-\frac {1} {5}" width="96" height="63"/>
②
<img class="kfformula" src="20190730/1564475645473521.png" data-latex="\frac {1} {5}" width="94" height="63"/>
③
<img class="kfformula" src="20190730/1564475645939907.png" data-latex="-5"/>
④
<img class="kfformula" src="20190730/1564475645707520.png" data-latex="5"/>
【单选题】
等差数列<img class="kfformula" src="20190809/1565315219717157.png" data-latex="\left \{ {{a}_{n}} \right \} "/>首项<img class="kfformula" src="20190809/1565315219801596.png" data-latex="{a}_{1}=1"/>，公差<img class="kfformula" src="20190809/1565315219560191.png" data-latex="d=-3"/>，当<img class="kfformula" src="20190809/1565315219192999.png" data-latex="{a}_{n}=-56"/>时，项数<img class="kfformula" src="20190809/1565315219715609.png" data-latex="n"/>等于（ ）
①
18
②
19
③
20
④
21
