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问题 单项选择题

某病原体能在细胞和鸡胚培养，能形成包涵体，可通过滤器，对抗生素不敏感，含一种核酸，它是（）

A.衣原体

B.支原体

C.螺旋体

D.病毒

E.真菌

答案

参考答案：D

解析：病毒能在细胞和鸡胚培养，能形成包涵体，可通过滤器，对抗生素不敏感，含一种核酸。

单项选择题

KNA company wants to maintain a level of current assets at least equal to 30 percent greater than current liabilities (current assets/current liabilities=current ratio=1.3). At the end of last year, current assets were $ 300 and current liabilities were $ 250. If KNA sold some fixed assets to generate cash, what is the minimum amount they would need to sell to reach a current ratio of 1.3（）

A. $ 25000.

B. $ 30000.

C. $ 15000.
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填空题

求（    ）中的（    ）叫做解比例。
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