直流变换电路的工作方式有3种。

1. 直流变换电路的工作方式有3种。

2. 恶性通货膨胀的危害体现在（ 　 　）。

3. 直流电机作为发电机运行时，电枢电动势E与电枢电流I的方向相反。（  　）

4. 贴体包装的优点是（ ）

5. 下面的句子中，属兼语句的是（）

6. html代码产生的表格是不能嵌套的。

7. 中国共产党第一次明确提出反帝反封建民主革命纲领的会议是

8. 细胞壁上由于次生壁不均匀加厚形成的孔隙称为 （ ）

9. 幽门螺旋杆菌培养特性

10. 旅游市场定位的步骤包括（）。

11. 晶闸管的维持电流IH是怎样定义的？

12.   Mary studied management at Hong Kong Polytechnic and graduated in 1980. She started her own business in 1985. But she did not stop developing herself. She then studied at the University of Hong Kong. Since 1987，she had spent a lot of time on photography. She has held several exhibitions of her work in many places－China, New Zealand and Paris. She still found time, however, to work on TV, write for newspapers and bring up her family.

13. 全面依法治国是推进国家治理现代化的()

14. 个人文化因素是指领导者和员工的对()企业文化的影响。

15. 晕轮效应是人员招聘中的主观失误之一。