动点P到直线x+y-4=0的距离等于它到点M（2，2）的距离，则点P的轨迹是（）

下列关于电解质的叙述，正确的是（　　）

A．NaCl溶液在电流作用下电离出Na⁺和Cl^-

B．凡是溶于水后能电离出H⁺的化合物就叫酸

C．HCl溶液能导电，而液态HCl难以导电

D．在溶于水和熔融状态下都能导电的化合物

下列哪种情况应考虑急性心肌梗死的可能（）.

A.夜间发生心绞痛

B.卧位型心绞痛

C.缺血性胸痛持续大于30分钟

D.恶化劳力型心绞痛

E.新近发生心绞痛

根据税收征收管理法律制度的规定，下列各项中，单位和个人在首次申请领购发票时应向税务机关提供的有（）。

A.税务登记证件

B.经办人身份证明

C.工商营业执照

D.财务印章或发票专用章印模

肾下垂的治疗，以下哪项是错误的（）.

A.偶然被发现肾下垂，一般无须进行治疗

B.症状不明显者，一般无须进行治疗

C.有血尿者，应手术治疗

D.有腰痛应加强腹肌锻炼，增加营养，使用紧束弹性宽腰带或肾托

E.症状较重，平卧或托肾后症状无明显好转，并有肾积水感染者，应施行肾悬吊固定术

The nurse teaches the client with peptic ulcer disease about how to effectively adjust his response to work-related stress. Which of the following statements by the client indicates that the education is effective

A．"My job is too stressful. I will have to find a different career. "

B．"I don't have any control over my stressors at work. My coworkers are difficult to work with. "

C．"Well, I guess this ulcer means I won't be able to work toward a promotion. "

D．"I will have to improve my ability to cope with stress. "