使用企业网上银行系统的企业用户数量如何要求？

某小组为研究电化学原理，设计如图装置。下列叙述不正确的是(　 　)

A．a 和 b 不连接时，铁片上会有金属铜析出

B．a 和 b 用导线连接时，铜片上发生的反应为：Cu^2＋＋2e^－=Cu

C．无论 a 和 b 是否连接，铁片均会溶解，溶液均从蓝色逐渐变

成浅绿色

D．a 和 b 分别连接直流电源正、负极，电压足够大时，Cu^2＋向铜电极移动

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

      In the late 1980s, during a visit to Bangladesh (孟加拉), I saw a woman with a baby on her back,

breaking bricks with a hammer. I asked a Bangladesh escort (随从) why they weren't using a machine,

which would have been a lot easier. He told me a machine would put that lady out of work. And bad as

that woman's job was, it was enough to keep a small family alive. 1______.

     Serving in the U.S. Army overseas in the past, I saw a lot of people like that woman in Bangladesh.

2______. They are victims (受害者) of crime and social unrest (动荡), who in turn become the drug

dealers and the street gang (匪帮) members. I've seen it over and over again everywhere I go. People

who have jobs can have a home, send their kids to school, develop a sense of pride, contribute to the

good of the community, and even help others. 3______. 

      4______, but I'm still working to help people prepared for disaster. I'm not going to stop. 5______.

A. Because they can work, they're free. They're blessed (幸福的).

B. It reminded me of my father's words: To work is a blessing

C. She might get to do a little farming some day, too.

D. I believe in my father's words: To work is a blessing

E. Now I'm retired from the Army

F. And I have come to believe that people without jobs are not blessed.

G. No one can work.

教育是提高受教育者的文化素质教育，实质也就是真、善、美的教育。（）

患者，男，70岁。家属代述：患者于今晨起床后半小时，突然昏仆，不省人事，目合口张，遗溺，手撒，四肢厥冷，脉细弱。治疗用隔盐灸，应首选

A．肾俞、太溪
B．关元、神阙
C．脾俞、足三里
D．胃俞、三阴交
E．三焦俞、内关

甲将机器设备租赁给乙，乙就该机器设备以甲为被保险人投保了财产损失保险，保险金额为10万元，在该合同中：

A．乙应当缴纳保险费，在其不能缴纳时，由甲缴纳

B．投保人未按照约定履行其对保险标的安全应尽的责任的，保险人有权要求增加保险费，但不得解除合同

C．保险标的危险程度增加，保险人有权要求增加保险费或者解除合同

D．保险标的危险程度明显增加，被保险人未按规定履行通知义务，发生任何保险事故，保险人不承担赔偿责任