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问题 单项选择题 A1/A2型题

下列哪类微生物是非细胞型微生物（）.

A.细菌

B.放线菌

C.真菌

D.病毒

E.立克次体

答案

参考答案：D

解析：非细胞型生物指无细胞结构的单一核酸活细胞内寄生的微生物，包括病毒、亚病毒和朊粒。

单项选择题 A1/A2型题

西医的红斑狼疮中医称为（）

A.杨梅疮

B.红蝴蝶疮

C.面游风

D.湿疮

E.瓜藤缠
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单项选择题

"I would almost rather see you dead. " Bobert S. Cassatt, a leading banker of Philadelphia, shouted when his twenty-year-old eldest daughter announced that she wanted to become an artist. In the 19th century, playing at drawing or painting on dishes was all right for a young lady, but serious work in art was not. And when the young lady’ s family racked among the best of Philadelphia’s social families, such an idea could not even be considered.

That was how Mary Cassatt, born 1844, began her struggle as an artist. She did not tremble before her father’s anger, she opposed him with courage and at last made him change his mind. Mary Cassatt gave up her social position and all thoughts of a thousand and a family, which in those times was unthinkable for a young lady. In the end, after long years of hard work and perseverance, she became America’s most important woman artist and the internationally recognized leading woman painter of the time.

What made Mary Cassatt’ s "struggle" to become a recognized artist especially hard（）

A．She was a woman.

B．Her father opposed her.

C．She had no social position.

D．She didn’t come from an artist’s family.
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