题目

我国季风区与非季风区的分界线是（ ） Ａ、秦岭－淮河Ｂ、大兴安岭－太行山－巫山－雪峰山 Ｃ、昆仑山－祁连山－横断山Ｄ、大兴安岭－阴山－贺兰山 答案：       DThe look on his face suggested that he just happened _______ the secret and _______ he himself was very shocked, too.A．knowing; 不填B．to know; 不填C．knowing; thatD．to know; that