[单项选择]关于软切换和更软切换，如下说法正确的是（）。
A. 软切换有中断，是“先断后连”，更软切换是无缝切换，是“先连后断”
B. 软切换是无缝切换，是“先连后断”，更软切换有中断，是“先断后连”
C. 软切换采用最大比合并，更软切换采用选择合并
D. 切换采用选择合并，更软切换采用最大比合并

[判断题] 从电缆沟道引至电杆或者外敷设的电缆距地面5m高及埋入地下0.2m深的一段需加穿管保护。
A.正确
B.错误

[单项选择]

QSC&V has been the foundation that (36) McDonald’s success. QSC&V (37) the McDonald’s (38) of Quality, Service, Cleanliness, and Value. It’s McDonald’s (39) ever since it (40) . Quality (41) McDonald’s (42) that they (43) their customers receive food products that are (44) of the best ingredients, strict standards, and proven preparation procedures (45) they will be safe, healthy, and great-tasting.
Service (46) fast and friendly has always been a foundation (47) success of McDonald’s. They use service enhancement techniques (48) provide service that meets and exceeds their customer’s (49) . Cleanliness has always been important to McDonald’s. This (50) having the cleanest and freshest facilities— (51) the kitchen and dining room to the rest rooms and (52) . Today, value is (53) the tota
A. that
B. which
C. what
D. it

[简答题]简述保护线，保护中性线各有哪些功能。

[判断题]912、水位计汽连管连接处发生泄露会导致水位计指示比实际水位偏低
A.正确
B.错误

[单项选择] Many publications made private inquiries before presidential election, generally by means of questionnaires sent to subscribers and by telephone surveys. The principle common to all these inquiries was that they depended on quantity rather than quality; little effort was made to reach representatives of all segments of the population. Still, the erroneous belief persisted that the greater the number of questionnaires, the more accurate the results would be. The record was held by the American monthly Literary Digest, which sent out millions of postcards with short and pointed questions before each election, and received many hundreds of thousands of replies. In fact, in 1932, the Literary Digest’’s forecast was off by only 1%. In view of such striking achievements, it seemed rather improper for the young American journalist, George Gallup, to claim that large numbers were irrelevant, and that equally accurate or better predictions could be made with a small but carefully selec
A. his performance in 1936 pre-election poll was excellent
B. he was the prophet of the moment
C. he founded a new scientific method of prediction
D. he was the founder of the Gallup Poll

[单项选择]在农业生产实践中，欲打破种子休眠，促进性别分化，促使植物抽苔开花，应选用（）
A. KT
B. 2，4-D
C. GA3
D. ABA

[单选题]二期处理火器伤延期缝合应在清创处理后的是
A.12小时-1天;
B.2-3天;
C.3-5天;
D.8-14天;
E.14天以后;

[单选题]2.244.第244题
电场是一种殊特物质。
A.正确
B.错误

[单项选择]建国初期，我国社会主义国有经济建立的最主要途径和手段是( )。
A. 没收帝国主义在华企业
B. 没收官僚资本
C. 没收民族资产阶级的财产
D. 没收地主阶级的土地和财产

[单项选择]

Learners of a new language often find themselves in ambiguous (有歧义的) situations. These situations are characterized by complexity, novelty (新颖), unexpectedness, or a lack of clear-cut (清晰的) solutions. Such ambiguity arises when a person does not understand a sentence, paragraph, or conversation because it contains unfamiliar words or structures. Persons who dislike uncertainty tend to become confused and frustrated, perhaps withdrawing from the situation. They may give up or, in the most extreme cases, even go so far as to avoid further contact with the language. They prefer safe situations in which everything has been practiced, and explained.
However, such behavior is not constructive because language students must learn to cope with uncertainty. Uncertainty is an inescapable part of communication. When someone speaks, he may occasionally feel unsure about his ability to get his message across. Even in the case of native speakers, there may be a lack of common b
A. produce a normal flow of speech
B. create native-like talks
C. get one’s ideas across slowly
D. say something at once