下列各种生理变化不属于第二性征的是( )
A:女性乳房发育
B:男性长胡须
C:男性声调变得低沉
D:男女外生殖器出现差异
⑴What's your favourite food ?____ A. Ten yuan.
⑵Where do tigers live ?____ B. They live in the forest.
⑶What's for lunch ? ____ C. I like some noodles.
⑷How much is it ?____ D. My favourite food is rice.
⑸Can you swim ?____ E. No, I can't.
《辛丑条约》明确规定:“中国国家应允由诸国分应主办,会同酌定数处留兵驻守,以保京师至海通道无断绝之处。今诸国驻防之处,系黄村、廊坊、杨村……山海关。”其影响是 ( )
某天气系统的气流由四周向中心逆时针方向辐合,该天气系统是()