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问题 单项选择题

流行性乙型脑炎综合性预防措施中，应以下列哪项为主（）

A.隔离病人

B.管理动物传染源，如猪等

C.防蚊、灭蚊

D.预防接种

E.防蚊、灭蚊与疫苗接种

答案

参考答案：E

单项选择题

优点是结构紧凑，只发生轴向变形，占据的空间位置小；缺点是制造比较困难，耐压低，补偿能力小，轴向推力大是( )的特点。

A．方形补偿器

B．填料式补偿器

C．波形补偿器

D．自然补偿器
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单项选择题

BIM Technologies Inc. is a large firm in a competitive industry. The company has above-average investment opportunities and its return on investments has been above the company's required rate of return. In addition, BIM has invested heavily in fixed assets and technology to reduce its production costs. The company has also increased its advertising budget substantially to establish a p brand image for its products. From the above description, BIM is best characterized as a

A. cyclical company that follows a low-cost strategy.
B. speculative company that follows a differentiation strategy.
C. growth company that follows a defensive competitive strategy.
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