“谁人不知张少帅，千古功臣一代骄”，与张少帅有关的历史事件是 [ ] A、南昌起

20世纪40年代。先后在重庆和北京召开的两次政治协商会议的相同点是：

A．都是在国共两党达成和平协议基础上召开的

B．都涉及到民主政治建设的问题

C．各民主党派都积极参加并拥护 * * 党的领导

D．都制定了临时宪法性质的文件

长江被称为“黄金水道”的主要原因是

A．年径流量大

B．水力资源丰富

C．航运价值高

D．流域内多矿产

One day Jack’s wife was cleaning out a closet(壁橱).

"Look at all these umbrellas," she said to Jack. "There are eight and they are all broken."

"I’ll take them to the umbrella shop and have them mended," Jack said.

Jack took the eight umbrellas to the shop and left them there. "They’ll be ready tomorrow," the shopkeeper said.

That evening Jack went home from the office by bus as usual. He sat next to an old woman. She had an umbrella on the floor near her.

When the bus reached his stop, he picked up her umbrella and stood up. "Hey!" the woman said. "That’s my umbrella !"

"I’m sorry," Jack said, and at the same time he gave the umbrella to her. "I wasn’t thinking. Please excuse me."

The next day he got back the umbrellas from the umbrella shop and got on the bus.

As he sat down, a voice behind him said, "You certainly have a successful day!"

He turned around and saw the woman whose umbrella had almost been taken by him the day before.

Jack’s wife found （）umbrellas in the closet.

A．eight broken

B．broken eight

C．eight new

D．new eight

用呼气相X线片诊断有重要价值的疾病是()

A．支气管异物

B．肺气肿

C．肺炎

D．细支气管炎

E．胸膜炎

在水泥磨细时，所掺入的天然或人工矿物材料称为混合材料，下列材料中何者属于活性混合材料（）

A.石英砂

B.黏土

C.矿渣

D.石灰岩