新鲜血液加入抗凝剂后,上层淡黄色半透明的液体是[ ] A.红细胞 B.白细胞 C

题型:选择题

问题:

新鲜血液加入抗凝剂后,上层淡黄色半透明的液体是[ ]

A.红细胞    

B.白细胞      

C.血小板    

D.血浆

考点:血液的组成和功能
题型:选择题

Giving Back

Fair Way

The Westborough High School golf team had taken the official photos with the state prize. The other teams, disappointed, were on the bus heading home. And then Westborough instructor Greg Rota noticed something wrong x>n one of the score cards. A 9 had been recorded as a 7. They were not the state prize winner; Wobum High had won. "No one would have known," said Wobum's instruc­tor, Bob Doran. For Rota, it wasn't a difficult decision: "The prize wasn't ours to take."

Coin Stars

"College students are lazy, but they also want to help," says University of Pennsylvania graduate Dana Hork. So she made it easy, placing cups in rooms where students could leave their spare coins, and handing out cups to first-year students to keep in their rooms. Her " Change for Change" effort has collected $40,000 for charities 慈善机构), which were decided upon by students.

Never Forgotten

A school in Massachusetts received a $ 9.5 million check from Jacques LeBermuth. But it took offi­cials several days of digging to discover his connection to the school. Records showed the LeBermuth came from Belgium and studied in the school in the 1920s. When his family fell on hard times, he was offered free room and board. LeBermuth became a trader, owned shares of AT&T and lived off the earnings until he died, at age 89.

60. What did Greg Rota probably do in the end?

A. Took photos of Doran.

B. Had a meeting with Doran.

C. Returned the prize to the organizer.

D. Apologized to Wobum High School.

61. Greg Rota's decision shows that he was _______.

A. honest              B. polite               C. careful              D. friendly

62. The underlined word "Change" in the second paragraph means _______.

A. Idea           B. Decision      C. Cups               D. Coins

63. What did the school officials do after receiving the check from Mr. LeBermuth?

A. They tried to find out why he gave them the money.

B. They went to Belgium to pay their respects to him.

C. They dug out the records that were buried underground.

D. They decided to offer their students free room and board.

64. Jacques LeBermuth gave the money to the school because _______.

A. the school asked for it                

B. he had no need for that much money

C. the school had helped him in the past  

D. he wanted to be remembered by the students

题型:选择题

某男性金矿掘金工人,工龄10年,2年前调离接尘岗位,离职时体检正常,因近来咳嗽、咳痰,自己治疗无效而就诊。

如果出现并发症,最常见最重要的是( )

A.肺癌

B.肺气肿

C.支气管炎

D.肺结核

E.肺心病

题型:选择题

某公司不确定将来收入或支出某笔外汇的期限,可以同银行签订远期合约,并在合约中注明交割的时间区段,以保留选择交割时间的权利。若外币利率高于本币利率,则公司最优操作是()

(1)如果公司持有多头头寸,选择最早的交割日进行交割

(2)如果公司持有多头头寸,选择最晚的交割日进行交割

(3)如果公司持有空头头寸,选择最早的交割日进行交割

(4)如果公司持有空头头寸,选择最晚的交割日进行交割

A.(1)(3)

B.(1)(4)

C.(2)(3)

D.(2)(4)

题型:选择题

对于时点指标数列计算序时平均数,可直接对各期指标数值求算术平均。

题型:选择题

下列属于钠通道阻滞剂IA类的是()

A.奎尼丁

B.利多卡因

C.胺碘酮

D.普萘洛尔

E.普罗帕酮

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