下面周边眼的封泥长度中，符合《煤矿安全规程》规定的光面爆破的是（）A、0.1m B、

One of the most famous writers from England by far is Agatha Christie.

Agatha Christie’s real name was Agatha Miller. She was born in England in 1890.She married Archibald Christie when she was 24 years old, and she changed her family name to Christie.

She sold her first mystery book in 1920. This book was the first time that the world met Mrs.Christie’s famous detective Hercule Poirot. Ten years after that, Mrs. Christie wrote her book with her second famous detective, Miss Marple.

In 1928, Mrs. Christie’s first marriage broke up. She married M.E.L. Mallowan in 1930, but she still wrote her books under the name Agatha Christie.

In her life, Agatha Christie wrote 60 books, 16 plays, and more than 100 short stories. She passed away in 1976 when she was 85 years old. Her books can still be found on sale in bookstores all around the world.

小题1: What did Aghta Christie do?

A．She was a detective.

B．she wrote books.

C．She was a mystery．

D．She knew famous detectives.小题2: Who was Hercule Poirot?

A．A detective in her books.

B．One of her books.

C．Her husband.

D．A writer.小题3: What happened in 1976?

A．Agatha Christie died.

B．Agatha Christie left her husband.

C．Agatha Christie wrote her last book.

D．Agatha Christie wrote a short story.小题4: What’s the best title of the passage?

A．Books about detectives.

B．Famous detectives.

C．A famous writer.

D．Agatha Christie or Agatha Miller.

出生后淋巴细胞明显低下，T、B淋巴细胞功能缺陷，伴骨骼发育异常（）

A.伴腺苷脱氨酶缺陷的SCID

B.X-伴性隐性遗传SCID

C.Wiskott-Aldrich综合征

D.网状组织发育不良症

E.B瑞士型SCID

新生儿坏死性小肠结肠炎。腹部平片以____________________、__________________、________________为特征。

流通市值是指企业在股票市场中的( )。

A．股份总数
B．股票总价值
C．股本总额
D．净资产总额

一直3欧姆电阻和一感抗为4欧的电感串连接在10V的交流电源上，则电感上的电压为（）。

A.57V

B.10V

C.8V

D.4V