初产妇，孕35周，因臀位行外倒转术，之后感到腹痛，伴有少量的 * * 出血。查：血压150

“今全国人民心理，多倾向共和，南中各省，既倡议于前，北方诸将，亦主张于后，人心所向，天命可知……予与皇帝得以退处宽闲。”这段文字说明清王朝灭亡的直接原因是

A．权臣的逼迫

B．人民的反抗

C．外敌的侵略

D．皇族的倾轧

中级以上士官在下列哪种条件下，不可以作退休安置的（）。

A.年满55周岁的

B.服现役满20年的

C.因战、因公致残被评定为1级至6级残疾等级的

D.经军队医院证明和军级以上单位卫生部门审核确认因病基本丧失工作能力的

什么是离心泵的气蚀现象？

Controversy has been aroused about the works of Jin Yong, a famous martial-arts fiction writer in China, being used in the students’ Chinese textbooks. Some experts in the field of education welcome the practice, while others are ply against it.

Topic: Should martial-arts fictions be integrated into the Chinese textbook

Questions for Reference:
1. Some people think the martial-arts fictions full of violence and romance are not suitable for the students. What’s your opinion
2. What do you think are the advantages and disadvantages of Jin Yong’s martial-arts fictions as textbook material
3. What are the possible negative effects and how can we reduce them

25℃时，将pH＝3的HA溶液与pH＝11的BOH溶液等体积混合，所得溶液pH小于7。下列说法不正确的是

A．HA为弱酸

B．混合溶液中加水稀释，pH升高，溶液导电能力减弱

C．等物质的量浓度等体积的NaA与NaCl溶液，溶液中的离子数目相等

D．混合溶液中滴加氨水至溶液的pH＝7，所得溶液中c(A^－)＝c(NH)＋c(B^＋)