下列原子结构示意图所表示的元素中,属于金属元素的是[ ] A. B. C. D.

题型:选择题

问题:

下列原子结构示意图所表示的元素中,属于金属元素的是[ ]

A.

B.

C.

D.

考点:原子结构示意图
题型:选择题

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.

Title: Face the Stress
Meaning of stressStress is a (68) when you are worried about something.
Possible effectYou may feel uncomfortable in your (69) and body.

Good stress

· It might happen when you have to (70) in public.

· It will be more (71) for you to do the job successfully.

· It makes you (72) better before doing the job.

Different kindsBad stress

· It might happen if your stress (73) too long.

· You may not feel well with the (74) of a family member, problems at school or something else that worries you every day.

· It might stop you from getting your work well done.

How to keep stress (75) 

Have a balanced life.

· Have enough sleep and have (76) food.

· Take exercise and have time to (77) yourself.


题型:选择题

两名举重运动员,甲比乙高,如果他们举起相同质量的杠铃所用的时间相等,如图所示,则  

[ ]

A.甲运动员做功较多,功率较小    

B.甲运动员做功较多,功率较大  

C.甲运动员做功较多,他们的功率相等

D.甲、乙运动员做功相等,功率相等

题型:选择题

下列各项,粒细胞缺乏症是指周围血中()

A.白细胞<4.0×109/L,粒细胞<3.0×109/L

B.白细胞<4.0×109/L,粒细胞<2.0×109/L

C.白细胞<3.0×109/L,粒细胞<3.0×109/L

D.白细胞<3.0×109/L,粒细胞<1.0×109/L

E.白细胞<2.0×109/L,粒细胞<0.5×109/L

题型:选择题

板框压滤机后的清液进入()

A、溶液循环槽

B、溶液缓冲槽

C、低位放空槽

题型:选择题

56岁妇女,绝经4年, * * 浆液血性分泌物伴臭味3个月,查宫颈正常大、光滑,子宫稍大稍软

本例的治疗方针应是()

A.手术治疗

B.放射治疗

C.化学药物治疗

D.手术及放射治疗

E.大剂量孕激素治疗

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