粒细胞缺乏症是指外周血中性粒细胞绝对计数持续低于（） A.0.5×109／L B.2

20世纪80年代初，我省考古工作者在和县县城以北龙潭洞发掘到一个相当完整的猿人头盖骨、零星的牙齿及額骨、颌骨碎片化石。通过鉴定，这一古人类是距今二三十万年前旧石器时代的直立人，考古工作者将其命名为“和县猿人”。从图文材料中获取的倌息是

A．填补了我国新石器时代历史的空白

B．佐证了我省是中 * * 的发样地

C．提供了研究长江沿岸人类起源和发展最有力的依据

D．体现了中华文明的深远影响力

啤酒花根部在-50℃可越冬，气温>3℃，（）开始活动。

A、根芽

B、根部

C、根须

D、根茎

某反应：AB + C 在室温下不能自发进行，在高温下能自发进行，对该反应过程△H、△S的判断正确的是                                                        

A．△H＞０、△S＞0

B．△H＞0、△S＜0

C．△H＜0、△S＞0

D．△H＜0、△S＜0

Order was caused by the need and desire to survive the challenge of the environment. This orderly condition called the "state", and the rules that maintained it, the "law" . With time the partner to this tranquility, man marched across the centuries of his evolution to the brink of exploring the boundaries of his own galaxy. Of all living organisms, only man has the capacity to interpret his own evolution as progress. As social life changed, the worth and rights of each member in the larger group, of which he was a part, increased. As the groups grew from clans to civilizations, the value of the individual did not diminish, but became instead a guide to the rules that govern all men.

2003年，我国在经济快速发展的同时，也出现了投资增长加速(尤其一些地区房地投资过大)，货币信贷增长过快现象，形成煤、电、油、运等供应紧张，物价增长加快的趋势。对此，中国人民银行采取了一系列货币政策措施加以调控，并已取得良好成效。
根据上述材料，回答下列问题：

2003年4月，中国人民银行开始发行央行票据，此举是为了( )基础货币。

A．发行

B．投放

C．平衡

D．收回