层系井网和注水方式的分析,主要以()为基本内容。A、储量运用程度 B、采出程度 C、

题型:单项选择题

问题:

层系井网和注水方式的分析,主要以()为基本内容。

A、储量运用程度

B、采出程度

C、采收率

D、采油速度

考点:采油工考试采油工技师考试采油工技师考试题库
题型:单项选择题

小明准备用120cm3的陶泥,制出一个长5cm、宽4cm的长方体,它的高为______cm,在它的表面涂色,涂色部分的面积是______cm2

题型:单项选择题

已知反比例函数的图象经过点(m,4)和(-4,3),则m的值为             .

题型:单项选择题

On a stormy day last August, Tim heard some shouting. Looking out to the sea carefully, he saw a couple of kids in a rowboat w ere being pulled out to sea.

Two 12-year-old boys, Christian and Jack, rowed out a boat to search a football. Once they’d rowed beyond the calm waters, a beach umbrella tied to the boat caught the wind and pulled the boat into open water. The pair panicked and tried to row back to shore. But they were no match for it and the boat was out of control.

Tim knew it would soon be swallowed by the waves.

“Everything went quiet in my head,” Tim recalls(回忆). “I’m trying to fi gure out how to swim to the boys in a straight line.”

Tim took off his clothes and jumped into the water. Every 500 yards or so, he raised his head to judge his progress. “At one point, I considered turning back,” he says. “I wondered if I was putting my life at risk.” After 30 minutes of struggling, he was close enough to yell to the boys, “Take down the umbrella!”

Christian made much effort to take down the umbrella. Then Tim was able to catch up and climb aboard the boat. He took over rowing, but the waves were almost too strong for him.

“Let’s aim for the pier(码头),” Jack said. Tim turned the boat toward it.  Soon afterward, waves crashed over the boat, and it began to sink. “Can you guys swim?” he cried. “A little bit,” the boys said.Once they were in the water, Tim decided it would be safer and faster for him to pull the boys toward the pier. Christian and Jack were wearing life jackets and floated on their backs. Tim swam toward land as water washed over the boys’ faces.

“Are we almost there?” they asked again and again. “Yes,” Tim told them each time.

After 30 minutes, they reached the pier.

小题1:Why did the two boys go to the sea?

A.To go boat rowing.

B.To get back their football.

C.To swim in the open water.

D.To test the umbrella as a sail.小题2:Why did Tim raise his head regularly?

A.To take in enough fresh air.

B.To consider turning back or not.

C.To check his distance from the boys.

D.To ask the boys to take down the umbrella.小题3:How can the two boys finally reach the pier?

A.They were dragged to the pier by Tim.

B.They swam to the pier all by themselves.

C.They were washed to the pier by the waves.

D.They were carried to the pier by Tim on his back.

题型:单项选择题

中国为兑现开放市场的承诺而做出的持续努力不如贸易争端更引人注意,中国欧盟商会执行总经理马乔治形象地比喻说:“一棵树倒下的动静,要比一片森林成长还要大。”马乔治要表达的真实意图是

A.中国加入世贸组织给全球化带来的弊大于利

B.中国加入世贸组织给全球化带来的利大于弊

C.经济全球化对发展中国家来说弊大于利

D.经济全球化对发展中国家来说利大于弊

题型:单项选择题

女性,17岁,进食时牙齿疼痛并伴发出血3个月余。口腔检查t患牙有大而深的龋洞,洞内有红色肉芽组织,触痛(-),探诊出血

下列哪种息肉来源的病损预后最差()。

A.牙髓组织

B.牙周膜

C.牙龈

D.被覆上皮

E.结合上皮

更多题库