在李斯特菌属中，下述哪个菌种对人和动物致病（） A.格氏李斯特菌 B.单增李斯特菌

Some cleaning fluids, synthetic carpets, wall paneling, and other products release toxins, such as formaldehyde and benzene, into the household air supply. This is not a problem in well-ventilated houses, but it is a problem in houses that are so well insulated that they trap toxins as well as heat. Recent tests, however, demonstrate that houseplants remove some household-toxins from the air and thereby eliminate their danger. In one test, 20 large plants eliminated formaldehyde from a small, welt-insulated house. Assume that a person who lives in a small, well-insulated house that contains toxin-releasing products places houseplants, such as those tested, in the house.
Which one of the following can be expected as a result

A．There will no longer be any need to ventilate the house.

B．The concentration of toxins in the household air supply will remain the same.

C．The house will be warm and have a safe air supply.

D．If there is formaldehyde in the household air supply, its level will decrease.

E．(E) If formaldehyde and benzene are being released into the household air supply, the quantities released of each will decrease.

自治州第十次党代会提出，构建科学合理的新型城镇化体系，充分发挥乌昌同城效应，构建以“一个中心、东西两翼（沿乌奇公路带、312国道城市带）、三大支点”为体系的城市群发展格局，打造“乌昌半小时一小时”经济圈。其中，“一个中心”指（），“三个支点”指（）、（）、（）。

A、乌鲁木齐市、昌吉市、阜康市、呼图壁县

B、喀什市、昌吉市、奇台县、玛纳斯县

C、乌鲁木齐市、昌吉市、阜康市、奇台县

某制造厂生产甲、乙两种产品，有关资料如下：

（1）甲、乙两种产品2007年1月份的有关成本资料如下表所示：

单位：元

（2）该厂每月制造费用总额为50000元，与制造费用相关的作业有4个，有关资料如下表所示：

要求：

（1）用作业成本法计算甲、乙两种产品的单位成本；

（2）以机器小时作为制造费用的分配标准，采用传统成本计算法计算甲、乙两种产品的单位成本；

（3）假设决策者计划让单位售价高于单位成本10元，根据第（2）问的结果确定甲和乙的销售单价，试分析可能造成的不利影响。

男，50岁，诉发热，牙龈出血2周，体检：体温38.5℃，面色苍白，颊黏膜可见血疱，浅表淋巴结不肿大，心率100/min，左肺背部可闻及湿啰音，肝脾肋下未及，胸骨压痛阴性。红细胞1.6×10¹²/L，血红蛋白55g/L，网织红细胞0.001。胸部X线片：左下肺炎。

本病例的诊断，以下哪项疾病可能性大（）

A.脾功能亢进

B.淋巴瘤

C.再生障碍性贫血

D.慢性粒细胞白血病急性变

E.多发性骨髓瘤

关键词，亦称（），一般是指各个专业从所属学科的自然语言词汇中选出来，经过规范化了的词，主要用作文献标识主题和检索之用。应置于论文摘要之后。