请列举加强支抗的方法。

改革开放近20年来，我国南方沿海如深圳、广州、珠海等城市人口急剧增长，造成这一现象的主要原因是[ ]

A．年龄组成呈增长型

B．性别比例发生变化

C．迁入率大于迁出率

D．出生率大于死亡率

将数据库表从数据库移出后，该表被______。

A．移出数据库

B．逻辑删除

C．放入回收站

D．物理删除

我国的社会养老保险实行社会统筹与个人账户相结合的运行方式。其中个人账户的存储额只能用于职工养老，不得提前支取，职工调动时，个人账户里的存储额全部随同转移，职工或退休人员死亡，个人账户中的个人缴费部分（ ）。

A．自动归零

B．用于支付此人的丧葬费用

C．转入社会统筹账户

D．可以继承

Pingyao, in the center of Shanxi Province, is a famous historic cultural city of China and a world cultural heritage site (世界文化遗址). It’s 90 kilometers south of Taiyuan on the Fen River.

People lived in Pingyao during the New Stone Age. Its long period as a country government seat has left Pingyao with lots of historic buildings and sites, with a 2,700-year history. Ninety-nine of them are under government protection, including Zhengguo Temple, Shuanglin Temple and Pingyao Ancient City.

During the Ming and Qing Dynasties, businessmen organized commercial (商业的) groups that did business nationwide. Shanxi Province had some of the most important ones and Pingyao was their center. In 1823, a store, known as Rishengchang(Sunrise Prosperity), traded in bank checks rather than in silver or gold coins. It was the beginning of modern Chinese banking. Branch banks were soon set up in major cities in China and other parts of Asia, leading to great development in Pingyao. Its Lacquer ware (漆器) became well known.

In Pingyao Ancient City are many traditional houses and commercial buildings, 3,797 of which are protected and more than 400 of which are in good condition. Not only do the houses in Pingyao show Shanxi’s history and culture, but this large number is valuable for studying its history, customs, and ancient buildings and art. Most of these houses are still used as homes and shops of local people.

In 1997, Ancient Pingyao City was listed in World Heritage List as “ World Culture Heritage Site”.

小题1:What does the underlined word “them”(in the 2^nd paragraph) refer to?

A．Historic buildings and sites.

B．The three temples.

C．The country government seats.

D．The 2,700-year history.小题2:Which of the following about Pingyao is NOT mentioned in the passage?

A．Its location (位置).

B．Its tourism.

C．Its business.

D．Its history.小题3:During the Ming and Qing dynasties, Pingyao was a leading center in __________.

A．agriculture

B．raising cattle

C．commercial trade

D．making gold coins小题4:If you want to know about the history of banking in China, you’ll visit __________.

A．Sunrise Prosperity

B．Zhengguo Temple

C．A lacquer ware store

D．A commercial house

什么是校准测量能力？