论述林业技术措施在防治森林病虫害的作用。

在12×5=60这个算式中，______是______和______的倍数，______和______是______的因数．

Although interior design has existed since the beginning of architecture, its development into a specialized field is really quite recent. Interior designers have become important partly because of the many functions that might be (51) in a single large building.

The importance of interior design becomes (52) when we realize how much time we (53) surrounded by four walls. Whenever we need to be indoors, we want our surroundings to be (54) attractive and comfortable as possible. We also expect (55) place to be appropriate to its use. You would be (56) if the inside of your bedroom were suddenly changed to look (57) the inside of a restaurant. And you wouldn’t feel (58) in a business office that has the appearance of a school.

It soon becomes clear that the interior designer’s most important basic (59) is the function of the particular (60) .

58().

A.correct 

B.proper 

C.right 

D.suitable

在SET交易的参与者中，负责提供数字证书的发放、更新、废除和建立证书黑名单等各种证书管理服务的是（）。

A.发卡银行

B.收单银行

C.支付网关

D.数字证书认证中心

财政部、国家税务总局、工信部下发《关于免征新能源汽车车辆购置税的公告》，宣布从2014年9月1日起，到2017年12月31日，对购置的新能源汽车免征车辆购置税。这一措施（）

①说明税收的固定性是相对的

②有利于引导消费方向

③有利于发挥市场的基础作用

④说明税收具有强制性

A.①③

B.①②

C.②④

D.③④

行政责任的追究机关的行政行为（）

A.具有强制性

B.具有讨论性

C.具有义务性

D.可以协商解决

E.可以剥夺人身自由