各润滑系统主要由（）组成，主要用于特定位置的自动润滑. A.润滑泵 B.油分配器 C

观察下列图形，选择一个正确的答案，使它们呈现出一定的规律。（）

A.A

B.B

C.C

D.D

克森公司是甲国的一家国有物资公司。去年，该公司与乙国驻丙国的使馆就向该使馆提供馆舍修缮材料事宜，签订了一项供货协议。后来，由于使馆认为克森公司交货存在质量瑕疵，双方产生纠纷。根据国际法的有关规则，下列哪一选项是正确的?

A.乙国使馆无权在丙国法院就上述事项提起诉讼

B.克森公司在丙国应享有司法管辖豁免

C.乙国使馆可以就该事项向甲国法院提起诉讼

D.甲国须对克森公司的上述行为承担国家责任

He was struggling to tie his shoes. I was struggling with whether I should help him.
I did, and he was grateful.
"Thank you," he said.
"I’m glad I could help. I just thought it would be easier for me to reach," I said.
He was a disabled man, and forced to look down most of the time. His arms and legs were twisted terribly, and he couldn’t do what the rest of us would consider easy tasks. He always managed to Look up to see how you reacted to his words, however. He had a big smile, making me feel comfort- able.
I was still on my knees by his wheelchair.
"Nice shoes," he said.
"Thanks. No one ever complimented me on them before," I said.
"No one has the same view of the world as I do," he replied.
"Tell me about the world as you see it," I said smiling.
"Most people can see if someone is comfortable with them or not in their eyes. I see it in their feet," he said. "If people keep moving their feet, I just let them go, because I know they’re impatient with me. I don’t want to make people uncomfortable."
"What about me" I asked.
"I could see your compassion. And then you came down to my level. I was the one who was nervous," he said. "I don’t normally have someone look me in the eye. "
"They don’t know what they’re missing," I told him.
"My old face is nothing to brag about. " he said.
"But that smile is so big. "
Yes, and it’s not only a big smile but an attitude.

We can infer from the passage that ______.

A．the disabled man had something wrong with his mind

B．not many people went down to the man’s level

C．the man was good at telling people about the world

D．the writer would not give the man more help

下面不属于计算机高级语言的是( )。

A．Visual Basic

B．汇编语言

C．C语言

D．BASIC

加力燃烧室前的气流参数不变，那么，发动机的推力是：（）。

A.增大

B.减小

C.不变