孔子伦理美学思想的核心是（）A、德 B、仁 C、信 B、义 E、道

There was a pilot and four people in a small plane. Suddenly there was something wrong with the machine while it was flying in the air. The plane began to fall down. The pilot told the people there were only four parachutes (降落伞). They all became worried and started to make excuses.

“I must go,” said the pilot, taking one of the parachutes and jumped out. The first person stood up, “I’m a doctor,” he said. “I help people live longer and I save lives.” He took a parachute and jumped out.

The next person said, “I must have a parachute. I am a very clever person. I have to attend an important match. I know I will win the game because I’ll be the cleverest person there.” He picked up a pack and jumped out.

Two men were left---an old businessman and a young mountain climber. At this time the plane was going down fast. The businessman said, “ Young man, I am old but you are still young. You take the last parachute.” The young mountain climber smiled. “Don’t worry,” He said. “ We can both jump out because there are still two parachutes. Just now the clever man jumped out with my backpack.”

小题1:All the people became worried because_________.

A. they couldn’t find the parachutes          B. they saw the pilot jump out first

C. they were afraid the plane would be broken and knew there were not enough parachutes for each person.

D There was too much smoke and they couldn’t jump out from the plane.

小题2:The clever man jumped out with_________.

A．a parachute

B．nothing

C．the backpack of the climber’s

D．two parachutes小题3:All the people thought of themselves except____________.

A．the pilot

B．the clever man

C．the doctor

D．the businessman小题4:Who do you think was the most kind-hearted man?

A the pilot、B the mountain climber  C the businessman     D the doctor

磺胺甲基异唑（SMZ）500g（）

A.润滑剂

B.黏合剂

C.崩解剂

D.填充剂

E.主药

The engine _______ smoke and steam.

A．gives up

B．gives in

C．gives away

D．gives off

变压器油的牌号是根据油品的（）划分的，如45号变压器油的凝点为（）。

在桥梁哪些位置不能有钢轨接头？