以下关于超声波特性的描述,哪些是正确的?() A.超声波属于声波范畴 B.超声波可不

题型:多项选择题

问题:

以下关于超声波特性的描述,哪些是正确的?()

A.超声波属于声波范畴

B.超声波可不通过弹性介质进行传播

C.在人体软组织、体液和气体中的传播方式为横波

D.具有反射、折射、衍射等特性

E.在不同介质中传播的速度不同

考点:超声医学与技术(医学高级)医学高级(超声医学与技术)正高特训押题密卷二
题型:多项选择题

香附配高良姜主治()

A.脾虚气滞夹积夹湿

B.血瘀胸胁心腹诸痛及血瘀出血

C.寒凝气滞、肝气犯胃之胃脘胀痛

D.崩漏下血属血虚有寒

E.痰浊闭阻、胸阳不振之胸痹

题型:多项选择题

Do you want to live with a strong sense of peacefulness, happiness, goodness, and self-respect? The collection of happiness actions broadly categorized(把…归类) as "honor" help you create this life of good feelings.

Here's an example to show how honorable actions create happiness.

Say a store clerk fails to charge us for an item. If we keep silent, and profit from the clerk's mistake, we would drive home with a sense of sneaky(卑鄙的) excitement. Later we might tell our family or friends about our good fortune. On the other hand, if we tell the clerk about the uncharged item, the clerk would be grateful and thank us for our honesty. We would leave the store with a quiet sense of honor that we might never share with another soul.

Then, what is it to do with our sense of happiness?

In the first case, where we don't tell the clerk, a couple of things would happen. Deep down inside we would know ourselves as a type of thief. In the process, we would lose some peace of mind and self-respect. We would also demonstrate(演示) that we cannot be trusted, since we advertise our dishonor by telling our family and friends. We damage our own reputations by telling others. In contrast, bringing the error to the clerk's attention causes different things to happen. Immediately the clerk knows us to be honorable. Upon leaving the store, we feel honorable and our self-respect is increased.  Whenever we take honorable action we gain the deep internal rewards of goodness and a sense of nobility(高尚).

There is a beautiful positive cycle that is created by living a life of honorable actions. Honorable thoughts lead to honorable actions. Honorable actions lead us to a happier existence. And it's easy to think and act honorably again when we're happy. While the positive cycle can be difficult to start, once it's started, it's easy to continue. Keeping on doing good deeds brings us peace of mind, which is important for our happiness.

小题1:According to the passage, the positive action in the example contributes to our_______.

A.self-respect

B.financial rewards

C.advertising ability

D.friendly relationship小题2:The author thinks that keeping silent about the uncharged item is equal to_______.

A.lying

B.stealing

C.cheating

D.advertising小题3:The underlined phrase "bringing the error to the clerk's attention" means_______.

A.telling the truth to the clerk

B.offering advice to the clerk

C.asking the clerk to be more attentive

D.reminding the clerk of the charged item小题4:How will we feel if we let the clerk know her mistake?

A.We'll be very excited.

B.We'll feel unfortunate.

C.We'll have a sense of honor.

D.We'll feel sorry for the clerk.小题5:Which of the following can be the best title of this passage?

A.How to Live Truthfully

B.Importance of Peacefulness

C.Ways of Gaining Self-respect

D.Happiness through Honorable Actions

题型:多项选择题

确采集痰标本的时间是()

A.输液前

B.痰液较多时

C.临睡前

D.清晨

题型:多项选择题

阀门检修前,要做哪些准备工作?

题型:多项选择题

小明20时最高温度和最低温度读数,进行了以下操作,错误的有().

A.用手握住最高温度表表身,感应部分向下,臂向外伸出约30°,用小臂将表前后甩动;

B.最高温度表甩动方向与刻度磁板面垂直;

C.抬高最低温度表的感应部分,表身倾斜,使游标回到酒精柱的顶端;

D.最高温度表放回原位时,先放表身,后放感应部分

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