推膝拨腰主要用于()时,突然改变方法主动攻击对方。
参考答案:双方抱缠
My shoes are worn out.They need_______.
A.to repair
B.be repaired
C.repaired
D.Repairing
以下哪一项属于染色体异常疾病()
A.Downsyndrome
B.Rettsyndrome
C.Turnersyndrome
D.Klinefeltersyndrone
E.FragileXsyndrom