下列股票种类中转让相对简便和容易的是()。A、记名股票 B、不记名股票 C、流通股票

下列疾病，最常出现杵状指的是（）

A.支气管哮喘

B.慢性肺脓肿

C.慢性支气管炎

D.肺气肿

E.肺心病

患儿，11个月，因咳嗽、呼吸困难1天入院。有受凉史，微咳，声音轻度嘶哑，时有呼噜声，偶尔呕吐，无犬吠样咳嗽，曾在外口服头孢氨苄及止咳药，半天来憋气明显，有时张口呼吸，流涕，流涎拒吞咽，哭闹不安，查体：T39℃，P164次／分，R48次／分，发育营养好，张口呼吸，前囟2cm×2cm，眼耳鼻无异常，咽部充血，有轻度喉鸣及吸气性三凹征，口唇轻度发绀，可闻喉鸣音，心腹（-）。辅助检查血常规：Hb101g／L，RBC3．88×10¹²／L，WBC14×10⁹／L，N63％，L30％，大小便（-），胸部X线可见两肺纹理粗厚，心膈未见异常。

从咳嗽、喉鸣、呼吸困难考虑，应与下列哪项进行鉴别诊断（）

A.咽后壁脓肿

B.支气管炎

C.细菌性肺炎

D.毛细支气管炎

E.支气管异物

______反映人的需要和动机，是人们一起共同活动的基础。

银川平原发展农业的主要水源是[ ]

A、大气降水

B、高山冰雪融水

C、黄河水

D、地下水

Generally speaking, a British is widely regarded as a quiet, shy and conservative person who is (1) only among those with whom he is acquainted. When a stranger is at present, he often seems nervous, (2) embarrassed. You have to take a commuter train any morning or evening to (3) the truth of this. Serious-looking businessmen and women sit reading their newspapers or dozing in a corner; hardly anybody talks, since to do so would be considered quite offensive. (4) , there is an unwritten but clearly understood code of behavior which, (5) broken, makes the offender immediately the object of (6) .

It has been known as a fact that a British has a (7) for the discussion of their weather and that, if given a chance, he will talk about it (8) . Some people argue that it is because the British weather seldom (9) forecast and hence becomes a source of interest and (10) to everyone. This may be so. (11) a British cannot have much (12) in the weathermen, who, after promising fine, sunny weather for the following day, are often proved wrong (13) a cloud over the Atlantic brings rainy weather to all districts! The man in the street seems to be as accurate — or as inaccurate — as the weathermen in his (14) .

Foreigners may be surprised at the number of references (15) weather that the British make to each other in the course of a single day. Very often conversational greetings are (16) by comments on the weather. "Nice day, isn’t it" "Beautiful!" may well be heard instead of "Good morning, how are you" (17) the foreigner may consider this exaggerated and comic, it is worthwhile pointing out that it could be used to his advantage. (18) he wants to start a conversation with a British but is (19) to know where to begin, he could do well to mention the state of the weather. It is a safe subject which will (20) an answer from even the most reserved of the British.

20（）

A.stimulate

B.constitute

C.furnish

D.provoke