当四杆机构出现死点位置时,可在从动曲柄上(),使其顺利通过死点位置。
A.加大主动力
B.减小阻力
C.加设飞轮
参考答案:C
.Mother is always telling me _______ home before 6: 00 pm.
A.come
B.came
C.coming
D.to come
阅读下面程序 public class OperatorsAndExpressions{void equalsMethodl(){String s1=new String("how are you");String s2=new String("how are you");System.out.println(s1==s2);}public static void main(String args[]){OperatorsAndExpressionsOperAndExp=new OperatorsAndExpressions();//用于复合类型数据的“==”运算符OperAndExp.equalsMethod1(); } } 程序运行结果是
A.=
B.true
C.false
D.equal