钩体病病理损害的基本特点。

甲亢患者由于T3，T4分泌过多引起的临床表现有哪些？

计算机通信是实现消防通信()的主要手段。

(A)自动化 

(B)半自动化 

(C)网络 

(D)信息

推动建设全国统一的（），实行重点单位碳排放报告、核查、核证和配额管理制度。

A.碳排放交易市场

B.碳排放核查工程

C.碳排放监管机制

D.碳排放管制系统

Green space facilities are contributing to an important extent to the quality of the urban environment. Fortunately it is no longer necessary that every lecture or every book about this subject has to start with the proof of this idea. (46)At present it is generally accepted , although more as a self-evident statement than on the basis of a closely-reasoned scientific proof. The recognition of the importance of green space in the urban environment is a first step on tile right way. (47)This does not mean, however, that sufficient details are known about the functions of green space in towns and about the way in which the inhabitants are using these spaces. As to this rather Complex subject I shall, within the scope of this lecture, enter into one aspect only, namely the recreative function of green space facilities.

(48) The theoretical separation of living, working, traffic and recreation which for many years has been used in town-and-country planning, has in my opinion resulted in disproportionate attention for forms of recreation far from home, whereas there was relatively little attention for improvement of recreative possibilities in the direct neighborhood of the home. (49)We have come to the conclusion that this is not right, because an important part of the time which we do not pass in sleeping or working, is used for activities and around home. So it is obvious that recreation in the open air has to begin at the street door of the house.

(50)The urban environment has to offer as many recreation activities as possible, and the design of these has to be such that more obligatory activities can also have a recreative aspect. The very best standard of living is nothing if it is not possible to take a pleasant walk in tile district, if the children cannot be allowed to play in the streets, because the risks of traffic are too great, if during shopping you can nowhere find a spot for enjoying for a moment the nice weather, in short, if you only feel yourself at home after the street-door of your house is closed after you.

(47)This does not mean, however, that sufficient details are known about the functions of green space in towns and about the way in which the inhabitants are using these spaces.

已知肌肉受到刺激会收缩，肌肉受刺激前后肌细胞膜内外的电位变化和神经纤维的电位变化一样。取三个新鲜的神经一肌肉标本，按下图连接，图中②、④、⑥指的是神经纤维与肌细胞之间的接头，此接头与突触结构类似。刺激③可引起右肌肉收缩，中肌肉和左肌肉也随后相继收缩。现直接刺激⑤，则会引起收缩的肌肉是：（）

A.左肌肉

B.左肌肉和中肌肉

C.中肌肉和右肌肉

D.左肌肉、中肌肉和右肌肉