压阻式压力传感器具有（）的特点。A、精度高 B、频率响应高 C、迟滞较大 D、结构复

某学校有两个参加国际中学生交流活动的代表名额，为此该校高中部推荐了2男1女三名候选人，初中部也推荐了1男2女三名候选人．

（ I）若从初高中各选1名同学做代表，求选出的2名同学性别相同的概率；

（ II）若从6名同学中任选2人做代表，求选出的2名同学都来自高中部或都来自初中部的概率．

Have you had a headache during a test Have you ever been so worried about something that you have a headache or even can’t sleep at night If so, then you know what stress is. Stress is what you feel when you are worried about something. This worry in your mind can make your body feel bad. You may feel angry, sad, scared, or afraid—all of which can give you a stomachache or a headache.
However, there are different kinds of stress. Some kinds of stress are good and others are bad. Good stress might happen when you’re called to answer questions in class or when you have to give a speech. This kind of stress can help you to get things better done. For example, you may do a better job on your test if the stress pushes you to prepare better before the test.
On the other hand, bad stress can happen if stress lasts too long. You may not feel well if your parents are fighting, if a family member is sick, if you’re having problems at school, or if anything else makes you unhappy every day. That kind of stress isn’t going to help you. And it can actually make you sick.
The best way to fight stress is to have a balanced life. Make sure you keep your SELF in mind: Sleep, Exercise, Leisure(休闲), and Food. If you get enough sleep and eat properly, and if you exercise and leave time for fun, you’ll probably feel less stressed.

某设备制造企业生产的产品有各类低压机电类设备及小型通用工程建筑类设备，该企业为了确保设备的质量，提升企业市场竞争能力，决定申请产品认证和质量管理体系认证，在申请认证时对有关问题进行了分析和讨论。

下列对认证依据和对象的理解，正确的是( )。

A．产品认证的依据是特定的标准

B．产品认证的对象是特定的产品

C．质量管理体系认证的依据是质量管理体系标准和产品标准

D．质量管理体系认证亦称质量管理体系注册

患者，22岁，食欲减退，乏力，进行性黄疸8天，24小时尿＜200ml已2天，神志不清1天入院，查肝肋下未及，ALT 40U/L，胆红素342μmoL/L，HBsAg阳性，哪项指标最能及时预测病情变化和预后

A．血红蛋白定量

B．血胆红素

C．血胆固醇量

D．血凝血酶活动度测定

E．血ALT活性测定

中国证券业协会对违反规定超出查询目的、泄露或提供他人使用、以营利为目的使用、加工或处理诚信信息，或将诚信信息用于非法目的的会员，情节严重的，给予（）处罚。

A、警示

B、行为内通报批评、公开谴责

C、移送相关监管部门

D、移送司法机关