【单选题】
Without entering the body and______damage, the CT is far superior to the X-ray or exploratory surgery.
①
cause
②
causing
③
caused
④
to be caused
【单选题】
Without entering the body and______damage, the CT is far superior to the X-ray or exploratory surgery.
①
cause
②
causing
③
caused
④
to be caused
【单选题】
sin(-1230°)的值是（ ）
①
<img src="20190823/1566525890759434.jpg" title="1566525890759434.jpg" alt="图片2.jpg"/>
②
<img src="20190823/1566525904186046.jpg" title="1566525904186046.jpg" alt="图片4.jpg"/>
③
<img src="20190823/1566525898758059.jpg" title="1566525898758059.jpg" alt="图片3.jpg"/>
④
<img src="20190823/1566525882547844.jpg" title="1566525882547844.jpg" alt="图片1.jpg"/>