关于浮选沫层厚薄的说法，不正确的是（）。A、精选要求较厚的泡沫层 B、精选要求较薄的

My interest in Chinese food started years a90, when l was a young reporter for the Washington Post. Our office wasn’t far from Chinatown, where I found some very good Chinese restaurants．

The first time I ever ate Chinese food I loved it. I noticed the fresh taste of the meat and vegetables. When I learned more about the food, I began to understand why it has this special feature.

Many years ago, China had an energy crisis because it lost much of its wood due to over population and poor management of its forests. This loss was very bad for the country, of course, but it turned out to be very good for the food. Wood became very expensive and hard to get，so the Chinese had to either find a substitute for their valuable wood，or learn how to use it better. There weren’t any substitutes so people found ways to economize.

In order to economize in cookin9, they had to use very little wood. So they started cutting their meat and vegetables into small pieces before they put them in the hot oil．That way，the food cooked faster and they saved their fuel. The food prepared in this way kept its fresh flavor一and it's this flavor that attracts people from other countries to the art of Chinese cooking.

小题1:This text is mainly about________.

A．what caused Chinese food to taste fresh

B．how Chinese food is cooked in the US

C．when the author started to make Chinese food

D．why most foreigners like cooking Chinese food小题2:The author mentioned the energy crisis to show________.

A．it is important to protect the forests

B．it is necessary to find substitutes for wood

C．why the Chinese changed their way of cooking

D．what problems a big population is causing China today小题3:It can be inferred from the text that before the energy crisis Chinese food________.

A．was cooked in rather large pieces

B．was cooked in water but not oil

C．didn’t taste good

D．didn’t look fresh

抗酸染色后细菌呈细长略带弯曲红色杆菌是（）。

A.白喉杆菌

B.结核分枝杆菌

C.霍乱弧菌

D.肺炎链球菌

E.炭祖芽胞杆菌具有以下形态特征的细菌是

境内证券经营机构要取得B股席位，必须取得( )。

A．经营外资股业务资格证书
B．外汇经营许可证
C．席位申请表
D．中国证监会的批准

股东可以采取实物出资的方式出资，这里的实物包括（）

A.建筑物

B.厂房

C.车辆

D.机器设备

Z位于Y的（）

A．东南方向

B．东北方向

C．西南方向

D．西北方向