Top lists are lecturing people on everyt

引起手术后腹胀的原因主要是

A．咽下的空气在肠腔内积存

B．食物残渣在肠腔内发酵产气

C．低钾血症

D．肠粘连

E．术后缺少活动

下列各种存货发出的计价方法中，不利于存货成本日常管理与控制的方法是( )。

A．先进先出法

B．移动平均法

C．月末—次加权平均法

D．个别计价法

More than three years after moving from Australia to this remote part of England, we are still learning how things are done here.

Not too long after we arrived and unpacked, we were invited for “a drink on Sunday morning” by a retired couple nearby. We got there about noon, to find the living-room crowded — lots of chat and discussions, and in all a very jolly occasion.

Trouble was, there was no food — no self-respecting Australian would regard a tray of crisps as food. In Sydney, when you are invited for a drink any time after midday on a Sunday, you know you will be fed as well as watered and you plan accordingly. Meaning the hardworked little woman makes no plans to cook lunch because you are eating out.

By one-fifteen my stomach was sending up “please explain” to me. Even the crisps had gone. There was nothing we could do except wait, and wonder if the hostess was going to perform some magic and feed us fashionably late. Then, as quickly as if word had spread that there was free beer at the local pub, the room emptied. By one-forty-five there were only a few guests left, so we decided to go home. Tinned soup for lunch that day because the little woman was not really interested in real cooking for us.

A few weeks ago we were invited out for “supper” and the hostess suggested 8:15. Ah, we thought greedily, “this is going to be the real thing.”

We dressed with some care — I putting on a dark suit — and arrived on time. My wife looked pretty good, I thought — a little black dress and so on. But when we walked in I had a terrible feeling we had got the night wrong because the hostess was dressed in a daytime kind of way and the husband was in jeans and an open-neck shirt. But no, we were greeted and shown into the sitting-room.

After a drink I looked around and saw that this was indeed a superior cottage because it had a (more or less) separate dining-room. But there were no signs of a table-setting. Not again! I thought. Were we meant to eat before we came? I decided that in future my wife and I would always carry a chocolate bar. About 9:28 our hostess went out of the room, saying something about food. Ten minutes later she returned and asked us to follow. We were led out to the kitchen. There on the table were country style plates and a huge bowl of soup, rough bread and all the makings of a simple meal. And that is what it was. In other words we had not read the signals right when we were invited for “supper”. If they want you to come to dinner, they say so, and you know that means dark suits and so on. If they mean supper, they say it, and you get fed in the kitchen.

1．When the author and his wife were invited out for “a drink on Sunday morning”, they thought _________.

A. they would be the only people there

B. they would be given lunch as well

C. they would be taken to a restaurant for lunch

D. they would be asked to take some food with them

2．The “party” had been going on for about an hour and three quarters when _________.

A. the hostess decided to feed her guests

B. everyone had tinned soup for lunch

C. most of the guests went to lunch at the pub

D. the author realized he would go home hungry

3．When invited out for “supper” a few weeks later, the writer _________.

A. expected to be served a proper dinner

B. arrived on the wrong evening

C. interpreted the invitation correctly this time

D. realized there was no dining-room in the cottage

4．As the evening wore on, the writer became aware that _________.

A. no one used their dining-rooms in the countryside

B. he should have had a meal before going out

C. “supper” meant a simple, informal meal

D. he should, in future, eat only chocolate in the evening

某建设项目设计生产能力为12万台/年，固定成本为1320万元/年，产品售价为900元/台，变动成本为630元/台，销售税金及附加50元/台。则此项目的盈亏平衡点产量为 ( )台/年。

A．60000

B．72000

C．54200

D．14635

药材冬虫夏草含有的主要化学成分是（）

A.藻胶酸、粗蛋白、甘露醇、钾、碘

B.粗蛋白、D-甘露醇、核苷类

C.β-茯苓聚糖、四环三萜酸类

D.松萝酸、巴尔巴地衣酸、地衣酸

E.鞣质、挥发油、树脂