【简答题】在括号中填入上一从句的从句类型 There was an accident on the corner of the Roman Street this morning. No witness saw what on earth happened then.( 1· ) A car crashed into a truck but luckily, no one got injured. Who ...
【简答题】B Scientists may have found a way to reduce shortage of type O blood. Type O is the kind of blood that hospitals most often need. What the researchers are testing is an easier way to make type O blood...