长期使用糖皮质激素治疗，停药时应注意 A．检查病人血细胞 B．检查胃粘膜有无损伤 C

为下列加粗的字选择正确的义项

（1）莫名其妙（　　）

A、名声　　B、占有　　C、说出　　D、出名的

（2）引经据典

A、凭据　　　B、依据　　C、依靠　　D、占有

（3）顾名思义

A、注意　　　B、拜访　　　C、照管　　　D、看

（4）兴高采烈

A、搜集　　　B、兴致　　　C、精神　　　D、选取

瀑布从20cm高处以103m³/s的流量竖直落下，流进底部的水轮机后再以2m/s的速度流出，水轮机再带动发电机发电。如果水的机械能转化为电能的效率是80%，那么发电机发出的电功率有多大？（瀑布在山顶的速度可忽略不计，g取10m/s²

Visitors to Britain may find the best place to sample local culture is in a traditional pub. But these friendly pubs can be dangerous places of potential gaffes (失礼) for the newcomers. A team of researchers have discovered some of the unknown customs of British pubs-starting with the difficulty of getting a drink. Most pubs have no waiters-you have to go to the bar to buy drinks. A group of Italian youths waiting 45 minutes before they realized they would have to fetch their own. This may sound inconvenient, but there is a hidden purpose.

Pub culture is designed to promote sociability (社交) in a society known for its reserve. Standing at the bar for service allows you to chat with others waiting to be served. The bar counter is possibly the only site in the British Isles in which friendly conversation with strangers is considered entirely suitable and really quite normal behavior. “If you haven't been to a pub, you haven't been to Britain.” This tip can be found in a booklet, Passport to the Pub: The Tourists' Guide to Pub Etiquette, a customers' rule of conduct for those wanting to sample “a central part of British life and culture”．

The trouble is that if you do not follow the local rules, the experience may fall flat. For example, if you are in a big group, it is best if only one or two people go to buy the drinks. Nothing annoys the regular customers and bar staff more than a group of strangers blocking all access to the bar while they chat and hesitate about what to order.

小题1: The underlined word “sample” in the first paragraph probably means “________”．

A．taste

B．experience

C．test

D．record ．小题2:The culture of pub in Britain is so developed to ______.

A．encourage people to communicate with each other

B．encourage more people to consume drinks

C．attract more tourists to the pubs

D．form its own character of culture小题3:If you don't follow the local rules in a pub, ________.

A．you won't buy good local drinks

B．you may annoy the regular customers and bar staff

C．you may fail to feel the local culture

D．you might get into a dangerous place小题4:What may be the best title for the passage?

A．Self-service Pubs in Britain

B．British Local Pubs: Special Chat Places

C．Local Pub Culture in Britain

D．Manners in British Local Pubs

理论上2G时代语音通话的接入时延大约为（），VOLTE的接入时延为（）

A、瞬间接通

B、2秒左右

C、5秒左右

D、10秒左右

经过段修的铁路货车，未取消辅修时，“非密封式制动缸不发生故障”的质量保证期限为一个（）。