取力器挂档要求气压是0.4-0.8Mpa。

题型:判断题

问题:

取力器挂档要求气压是0.4-0.8Mpa。

考点:消防装备考试消防车泵、装备部分消防车泵、装备部分题库
题型:判断题

480是______的24倍.

题型:判断题

A点正午太阳高度角为0°,读图回答下列问题:

小题1:若此刻A点正值正午,太阳直射点的坐标是:________,此时北京时间是________。

小题2:图中B、C、E三点的正午太阳高度角按大小顺序用“>”排列________。D点的正午太阳高度为________。

题型:判断题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余项。

Autumn blues? Let the sunshine in falling leaves, withering flowers, cold winds, faint sunshine.   小题1:    Spirits can be low.

People who suffer from the “autumn blues” often are extremely exhausted, lack energy, need more sleep, feel increased appetite and gain weight.

“The exact cause of this condition, often called seasonal depression or seasonal affective disorder(SAD), is not known yet,” says Chen Jue, associate professor at Shanghai Mental Health Center. “But recent studies indicate that weather change is influential and strongly suggest that this condition is caused by changes in the availability of sunlight.”

One theory is that with the decreased exposure to sunlight, the biological clock that regulates mood, sleep and hormones is delayed, running more slowly in winter.    小题2:        Another theory is that brain chemicals that transmit information between nerves may be altered in individuals with SAD. It is believed that exposure to light can correct these imbalances.

   小题3:   Remember, spring always lives in your heart,” Chen says.

Here are some tips to deal with autumn depression.

Go outdoors and get some sunlight. More around. Fresh air and exercise improve the respiratory system and blood circulation and regulate the nervous system. Thus exercise is calming and relieves one’s mood.

Relax at work. Stretch, breathe deeply. Take a tea break. Think of your next vacation.

小题4:   Chocolate and sugar raise the spirits.

Look at bright colors, such as red and orange. Color therapy improves mood.

Listen to your favorite music. You can dance to it, or just lie on a cozy couch, reading a novel.

   小题5:    Blooming plants are cheering.

Call friends or family when you feel lonely or depressed. Recall some happy memories.

A.Exposure to light may reset the biological clock.

B.Decorate your room and work space with flowers.

C.It is a sad season, but you can try to make it happy.

D.That is the way you can use to lighten yourself.E. Keep a chocolate bar in your pocket.

F. For many people late autumn can be a season of gloom and depression.

G. Autumn always gives us a beautiful scene.

题型:判断题

A型行为的特征是()

A.时间紧迫感

B.竞争敌意倾向

C.A、B都对

D.A、B都错

E.A或B

题型:判断题

在计算机中,图或网络的存储可以采用的方式为()。

A、栅格矩阵

B、邻接矩阵

C、四叉树结构

D、块码

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