在商业活动层面上，企业可能面对的风险可分为两大类，即（）。

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问题单项选择题

A.经营风险和行业风险

B.经营风险和市场风险

C.市场风险和法律风险

D.行业风险和操作风险

答案

参考答案：A

单项选择题

下面不属于海洋动物种类大致分类的一项是（）

A.钙质海绵

B.六放海绵

C.异常海绵

D.球形海绵

单项选择题

To keep injured survivors warm in the water after abandoning a ship，they should（）.

A.be placed in the middle of a small circle formed by the other survivors in the water

B.float on their backs with their arms extended for maximum exposure to the air

C.remove their life preservers and hold on to the uninjured survivors

D.sip seawater at intervals of fifteen minutes