下列具有独特发育周期的微生物为A．支原体 B．衣原体 C．立克次体 D．螺旋体 E．

阅读下面短文, 按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为16—25的相应位置上。

A man who knows how to write a personal letter has a very powerful tool. A letter can be enjoyed, read and reread. It can set up a warm conversation __小题1:_ two people far apart (远离的); it can keep a _小题2:__   (friend) with very little effort.

I will give an example. A few years ago my older brother and I were not getting along. We had been close as children 小题3:_ had grown apart. Our meetings were not _小题4:__ (pleasure); our conversation was filled with arguments and quarrels: and every effort to clear the air seemed to only _小题5:__ (deep) our misunderstanding. Then he moved to a small island in the Caribbean and we lost touch. One day he wrote me a letter. He described his island and _小题6:_ people, told me what he was doing, said how he felt, and encouraged me to write. Rereading the letter, I _小题7:_ (drive) by its humor（幽默）and clever expressions. These were all qualities for __小题8:_ I had once respected my older brother but thought he no longer had them. I had never known he could write so well. And with that one letter we became friends again.

__小题9:_ might never have occurred to my brother to write me if he had not been in a place where there were no phones. For him, writing was a necessity. It also turned out to be the best way for us to get back in touch. Because we live in __小题10:__ age of easy communication（通讯）, people often forget that they don’t always have to phone or email. They have a choice. And that is to write.

某人先后向甲、乙两保险公司善意重复投保，保险金额分别为4万元、6万元，损失5万元，依顺序责任分摊方式，甲保险公司应赔付（）万元。

A.5

B.4

C.2

D.2.5

与市场风险和信用风险相比，商业银行的操作风险具有（）

A、特殊性、非盈利性和可转化性

B、普遍性、非盈利性和可转化性

C、特殊性、盈利性和不可转化性

D、普遍性、盈利性和不可转化性

纳税人自产自用的应税消费品，凡用于其他方面，应当纳税的，按照纳税人当月销售的同类消费品的销售价格计算纳税。如果当月同类消费品各期销售价格高低不同，则应 ( )。

A．按最高销售价格计算

B．按最低销售价格计算

C．按平均销售价格计算

D．按销售数量加权平均计算

下图是中美两国的两个苹果产区与北半球苹果生长最适宜区的气候条件和生产成本的相关资料。据表回答以下小题。

表中的美国产区最可能位于（）

A.30°N-40°N西海岸

B.30°N-40°N东海岸

C.密西西比河三角洲

D.五大湖区