下列列强的侵华罪行发生在第二次鸦片战争中的是()
A.占领香港岛
B.火烧圆明园
C.拆毁大沽炮台
D.屠杀旅顺居民
参考答案:B
Many people have come to realize that they should go on________balanced diet and make________
room in their day for exercise.[ ]
A. a; /
B. the; a
C. the; the
D. /; a
某十字交叉口的红灯20秒,黄灯3秒,绿灯15秒,该交叉口的信号周期为()
A.20秒
B.41秒
C.15秒
D.38秒