每天，北京 * * 广场的国旗与太阳同时升起，下列节假日中升旗时间最早的是[ ]
A．五一劳动节
B．六一儿童节
C．八一建军节
D．十一国庆节
答案：B
传统的信息流程有哪些缺陷？
Scientific researches show that to __________ a language one had better often get exposed to it.
A．acquire
B．access
C．acknowledge
D．assess
