门静脉高压症患者外科手术治疗的主要目的是（） A.紧急制止上消化道出血 B.防止肝功

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, even (2) . 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 (4) .

(5) , there is an unwritten but clearly understood code of behavior which, once 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 (16) to each other in the course of a single day. Very often conversational greetings are (17) by comments on the weather. “Nice day, isn’t it” “Beautiful!” may well be heard instead of “Good morning, how are you” Although the foreigner may consider this exaggerated and comic, it is (18) .pointing out that it could be used to his advantage. If he wants to start a conversation with a British but is at a loss to know (19) 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.

10（）

A.dedication

B.suspicion

C.contemplation

D.speculation

两条直线相交就一定是垂直．______．

采用分裂导线的线路一般要求安装阻尼间隔棒，下列说法中哪项是不正确的？（）

A.安装阻尼间隔棒可防止导线微风振动

B.安装阻尼间隔棒主要是为了防止导线舞动

C.安装阻尼间隔棒宜采用不等距安装

D.安装阻尼间隔棒可防止导线次档距振荡

在服从国家意志、实行宏观决策，领导与指挥等方面要贯彻公安工作的( )。

A．集中性
B．集中性与分散性并重
C．以集中性为主，以分散性为辅
D．分散性

在Excel中，若在D2单元格输入“=45>=46”，则D2单元格显示的值为______。

A．45＞=46

B．=45＞=46

C．TRUE

D．FALSE