“三抓一巩固”基建安全主题活动内容是什么？
参考答案：
抓制度执行，抓措施落实，抓监护到位，巩固基建安全基础。
It's wellknown that the world economic situation will get worse________. [ ]
A. not if dealt carefully with
B. if not carefully dealt with
C. if dealt not carefully with
D. not if carefully dealt with
鼻中隔偏曲引起头痛的原因是（）。
A.阻塞鼻旁窦开口，妨碍鼻旁窦通气引流，引起阻塞性头痛
B.真空性头痛
C.鼻中隔偏曲部位压迫血管引起的血管性头痛
D.鼻中隔偏曲部位压迫神经引起的神经性头痛
E.高位鼻中隔偏曲，嵴突或矩状突压迫鼻甲黏膜引起反射性头痛
