早产儿呼吸系统不成熟，易发生下列哪些现象()
A.呼吸暂停
B.肺透明膜病
C.胎粪吸入
D.支气管炎
E.湿肺
参考答案：A, B
—Would you mind putting out your cigarette?
—_____. I forget it's "No Smoking Day". [ ]
A. Not at all
B. It doesn't matter
C. Yes, please
D. Just a little
中国出口集装箱运价指数作为航运市场的“晴雨表”，发布周期为（）。
A.1周
B.1个月
C..3个月
D.6个月
