142857×1=142857142857×2=285714 142857×3=

题型:填空题

问题:

142857×1=142857142857×2=285714

142857×3=428571142857×4=571428

142857×5=______ 142857×6=______.

考点:找规律
题型:填空题

女,46岁,左上后牙突然肿起2天。2周前刚结束龈下刮治治疗,急诊诊断为急性牙周脓肿,检查未见明显的局部刺激因素,脓肿形成最可能的原因是()。

A.牙髓炎症

B.食物嵌塞

C.口腔卫生保持不良

D.牙周袋深处牙石未刮净

E.创伤

题型:填空题

预防子宫脱垂不正确的是()

A.产后避免过早参加体力工作

B.尽量行剖宫产术

C.推行计划生育

D.产后早期盆底肌肉锻炼

E.积极治疗咳嗽、便秘

题型:填空题

该患者的主要诊断应考虑

A.腹股沟疝
B. * * 狭窄
C.前列腺增生
D.膀胱结石
E.膀胱颈挛缩

题型:填空题

Every weekend, many Americans drive around looking for things to buy. They are taking part in an unusual kind of outdoor treasure hunt: the yard sale (旧货出售). In some parts of the country, such a sale might be called a garage sale or a moving sale. Whatever the name, the activity is the same. People sell things they no longer want.

The sellers put a paid announcement in a local newspaper. It tells when and where the yard sale will take place. It lists some of the things to be sold. Early in the morning, all the things to be sold are carried out of the house. Then they sit all day waiting for someone to take them home. Usually, the seller puts a price on each object at a yard sale. However, that price can almost always be negotiated (谈判).

Serious buyers also spend time getting ready for yard sales. They collect the newspaper announcements. Then they make lists of the sales they want to attend.

Most people who go to yard sales are not looking for anything special. They might buy an object simply because it costs so little. They enjoy bargaining over prices, even if they may hold their own yard sale to sell all the things they have bought.

To other people, yard sales are simply a way to have fun. In some communities, they are important social gatherings. Other people say yard sales help the environment. Old things are re-used instead of being thrown away.

In any case, yard sales are very popular in America. Hunting for unusual items is a sport for some people. For others, it is a way of life.

59 What can’t you get to know about the yard sales announced in a local newspaper?

A.When to attend the yard sale.

B. Where to attend the yard sale.

C. What is to be sold at the yard sale.

D. The prices of the things to be sold at the yard sale.

60 Before a yard sale, the sellers need to do all the following things EXCEPT ______.

A. putting a paid announcement in a local newspaper

B. bargaining over the prices with the buyers

C. putting the price of each object

D. carrying all the things to be sold out of the house early in the morning

61 Which of the following is NOT true according to the passage?

A. A yard sale can also be called a garage sale or a moving sale.

B. The sellers need to pay for putting an announcement in a local newspaper.

C. The sellers collect the newspaper announcements before the yard sales.

D. The prices for the items to be sold at a yard sale can be negotiated.

62.Which of the following statements is NOT mentioned as the reason why yard sales are very popular in America?

A. People can buy something special at yard sales.

B. People can buy something they really want.

C. People can enjoy bargaining over prices.

D. People regard yard sales as social gatherings.

题型:填空题

中试放大的目的是、()和()实验室工艺(又称小试验)所研究确定的反应条件与反应后处理的方法。

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