接触网作业车由柴油机、电气系统、传动系统、制动系统、走行部、车体、液压系统及液压升降

题型:填空题

问题:

接触网作业车由柴油机、电气系统、传动系统、制动系统、走行部、车体、液压系统及液压升降回转()等组成。

考点:接触网作业车乘务员接触网作业车乘务员题库
题型:填空题

用惰性电极电解+n价金属的硝酸盐溶液,当阴极上析出mg金属时,阳极上产生560mL(标准状况)气体,此金属的相对原子质量应为

A.10m n

B.10m

C.10n

D.40mn

题型:填空题

根据美国著名营销学家贝里等专家的研究,服务质量的评价标准因素包括()。

A.有形性

B.可靠性

C.可测性

D.可信性

E.移情性

题型:填空题

It was the first day of second grade, and Sarah had been looking forward to this moment. The night before, she laid out her favorite clothes: a white coat and a bright yellow shirt.

When having breakfast, Sarah dropped some food on her shirt, so she had to change into her second-best clothes, blue jeans and a Jonas Brothers T-shirt.

After breakfast Sarah rushed to catch the school bus and when she was just reaching the door the bus driver opened it. The door hit right in Sarah’s face and blood dripped from her nose. The driver wanted to send her home, but she refused, "It is the most important day of the year! I can’t miss it!"

Before classes, Sarah went to her favorite swing. When rising high, she saw her best friend little Jack. She let go of the swing and waved to him with one hand. Unfortunately, she flew out of the swing and landed hard on the sand, breaking a leg and an arm. As she lay in the sand, she noticed a shiny thing on the ground beside her. With her good hand she took it.

When Sarah’ mother rushed into the ward she was surprised by what she saw: her girl was lying in bed with an arm and a leg in the splint (夹板), a broken nose, and blood stains on her second-best clothes. Expecting to see her child crying, she was confused when she saw a big, bright smile on Sarah’s face.

"Sarah, look at you!" her mother cried. "You were hurt so badly and why are you smiling?"

"Look, Mommy, I found a diamond!" Sarah laughed.

Life can be like that. It can be tough, even painful sometimes. But there are always treasures that make the pain worth suffering.

小题1:When Sarah went to school, she was wearing ________________.

A.a white coat and a Jonas Brothers T-shirt

B.blue jeans and a yellow shirt

C.a white coat and a yellow shirt

D.blue jeans and a Jonas Brothers T-shirt小题2:Sarah fell off the swing because _____________.

A.she seldom played swing

B.she rose too high

C.she waved one hand to her friend

D.she was pulled down by her friend小题3: When Sarah’s mother saw her in the ward she felt _______________.

A.upset

B.puzzled

C.relaxed

D.disappointed小题4:Which of the following can be used to describe Sarah’s story?

A.Every cloud has a silver lining.

B.Nothing is impossible to a willing mind.

C.First think, then act.

D.No pains, no gains.

题型:填空题

对于生殖器结核的诊断恰当的是()

A.血沉正常者可排除结核

B.门细胞计数增高

C.宫颈活检是鉴别宫颈结核与宫颈癌的重要方法

D.胸部X线未见肺内结核灶可排除生殖器结核

E.月经血培养阴性可排除结核

题型:填空题

在锁紧回路中,常采用一个(),使液压缸活塞锁紧在行程的某一点,其作用是防止重物因自重下落,也防止外负荷变化时活塞移动。

A.调节阀

B.可调节流阀

C.先导顺序阀

D.单向阀

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