关于JK触发器正确的表述是() A.对于输入信号没有制约条件 B.不允许J、K同

题型:多项选择题

问题:

关于JK触发器正确的表述是()

A.对于输入信号没有制约条件

B.不允许J、K同时为1

C.允许J、K同时为1

D.允许J、K同时为0

考点:电气工程公共基础第五节数字电子技术第五节数字电子技术题库
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Have you ever felt sick to your stomach during a test? Have you ever been so worried about something that you ended up with a terrible headache?

If so, then you know what it's like to feel stress. You've probably heard people say, "Wow, I'm really stressed out.” ___小题1:____ But children have lots of things going on in their lives that can cause stress, too.

What is stress?

Stress is what you feel when you are worried or uncomfortable about something. This worry in your mind can make your body feel bad. You may feel angry, frustrated, scared, or afraid --- which can give you a stomachache or a headache.

What causes stress?

Plenty of things can cause stress in a child's life.___小题2:____Good or normal stress might show up when you're called on in class or when you have to give a report. Have you ever gotten butterflies in your stomach or sweaty hands? Those can be signs of good stress. ___小题3:____ For example, you may do a better job on your book report if the anxiety inspires you to prepare well before you get up and read it to the class.

But bad stress can happen if the stressful feelings keep going over time. 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 you're going through anything else that makes you upset every day. ____小题4:____

Once you recognize that you're feeling stressed, there are several things you can do. You can try talking about what's bothering you with an adult you trust, like a parent or teacher. ___小题5:____ An adult may have ideas about how to solve whatever is worrying you or making you uncomfortable.

A.This kind of stress can help you to get things done.

B.Maybe you hear adults say those kinds of things all the time.

C.Bring up what's been on your mind and how it makes you feel.

D.Everyone experiences stress at times --- adults, teens, and even kids.E. There are ways to reduce stress and manage the stress that's unavoidable.

F. That kind of stress isn't going to help you, and it can actually make you sick.

G. The trick is to remember that some types of stress are good and others are bad.

题型:多项选择题

原发性肝癌最常见的转移方式是

A.侵犯门静脉分支,经门静脉系统形成肝内播散
B.肝外血行转移
C.淋巴转移
D.腹腔种植

题型:多项选择题

[听力原文] ??男的和女的是什么关系?()

A.朋友 

B.师生 

C.父女 

D.母子

题型:多项选择题

面部各突起已完成融合是在()

A.胚胎第3周

B.胚胎第4周

C.胚胎第6周

D.胚胎第6~7周

E.胚胎第7~8周

题型:多项选择题

西周时期,实行( )的婚姻制度。

A.一夫多妻制

B.禁止五服之内亲属结婚

C.一夫一妻制

D.对婚姻年龄作出“男年15,女年13”的规定

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