【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】
<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】
在正方体<img class="kfformula" src="20190809/1565328255613453.png" data-latex="ABCD\_ {A}_{1}{B}_{1}{C}_{1}{D}_{1}"/>中，<img class="kfformula" src="20190809/1565328255952220.png" data-latex="{A}_{1}B"/>与<img class="kfformula" src="20190809/1565328255653689.png" data-latex="AC"/>所成的角是（ ）
①
45°
②
60°
③
120°
④
90°
