商品用动物应选养杂种。
参考答案:对
Finally I turned the key in the lock and _______ the door open, with Dad still complaining (抱怨)
about a hurting knee or something. [ ]
A. knocked
B. forced
C. pushed
D. tried
黑海和地中海之间的海峡是 _____ ,苏伊士运河沟通了 _______海和 ______海。霍尔木兹海峡沟通了 ______湾和 _______海。