以下哪些情况机动车应当提前开启左转向灯()。 A.向左转弯 B.向左变更车道 C.准

题型:多项选择题

问题:

以下哪些情况机动车应当提前开启左转向灯()。

A.向左转弯

B.向左变更车道

C.准备超车

D.驶离停车地点或者掉头

E.向右转弯

考点:公安机关执法考试交巡警执法资格考试交巡警执法资格考试题库
题型:多项选择题

健康危险度是指外源化学物

A.损害机体的固有能力
B.损害机体的强度
C.损害机体的可能性的定性估计
D.损害机体的可能性的定量估计
E.不损害机体的可能性

题型:多项选择题
若复数z=1-i,则|z|=______,z2+3
.
z
-3=______.
题型:多项选择题

脑颅有8块颅骨,面颅有15块颅骨。

下列是成对的脑颅骨的是()

A.上颌骨

B.额骨

C.枕骨

D.筛骨

E.颞骨

题型:多项选择题

下列有关空气各成分的叙述中,错误的是(  )

A.珠穆朗玛峰顶空气稀薄,其氧气的体积分数小于21%

B.氧气具有助燃性,可燃物在纯氧中燃烧更剧烈

C.稀有气体也称“惰性气体”,通常状况下很难与其他物质发生反应

D.通常所说的湿度是指空气中水蒸气的含量,湿度越大,空气中水蒸气的含最越大

题型:多项选择题

To learn an instrument such as the violin or accordion(手风琴)takes years. The job opportunities for musicians are scarce and competition is fierce. Then why are more people than ever before paying a lot of good cash to get their children the best music teaching they can afford?

The secret lies in the influence of music on the whole person. It has been found that learning a musical instrument actually increases a person’s IQ over time. Different instruments and different trypes of music have varying effect, with classical music and the string family coming out on top, potentially increasing you IQ by up to 12 points!

When is a good time to start learning music? Experts have found that even the fetus(胎儿)can benefit from listening to classical music. Surround yourself and your family with good music from the first. The Suzuki Piano Method teaches children from the age of 3 years piano, with two lessons per week. From preschool, children can learn to read music and play from sheet music. Progress in learning your instrument is directly proportional(成比例的)to the amount of practicing.

Is there such a thing as an unmusical child? Shinichi Suzuki proposes that music is the native home language of all human beings and therefore nobody can be “unmusical”. Of course there are exceptional talents, compared to which others may seem to be slower learners.

Is there any benefit for adults in starting an instrument? Apart from the purely relaxing aspect, yes. Learning an instrument can earn even adults additional IQ points, and as an added benefit in improves your health by reducing your stress levels. Your social life may benefit too, if you are prepared to come out of your box and join occasions such as Ceilidhs (musical get-togethers) or arrange house concerts. It has been established that people who play instruments tend to be more emotionally balanced and more patient with themselves, others and life in general.

So go ahead, sign up for that amateur orchestra, dust off your old trombone(长号)or take your first real six-string down from the attic(阁楼); get out there and play!

小题1:Playing which of the following musical instruments can help increase a person’s IQ most?

A.The piano

B.The violin

C.The trombone

D.The accordion小题2:According to Shinichi Suzuki,             .

A.The progress in learning an instrument depends on natural gifts

B.It is too late for an adult to start an instrument

C.Every child has a natural talent for music.

D.All people can understand and read music.小题3:What can be inferred from the text?

A.Music can balance our life.

B.Music can improve our living conditions.

C.Playing instruments can make adults keep their IQ points.

D.Playing instruments can help us get along well with others.小题4:By writing the text, the author mainly wants to        .

A.persuade us to send our children to music schools

B.express his great interest in musical instruments

C.tell us the importance of Music in Development

D.invite us to attend Ceilidhs

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