如何在新版本的Word 2007中选择打印选项？（） A.单击功能区上的“打印”按钮

从直线外一点到这条直线所画的垂直线段叫做点到直线的距离．______（判断对错）

镰刀型红细胞贫血的基因突变属于

A．插入

B．缺失

C．移码突变

D．点突变

E．形成嘧啶二聚体

巴氏消毒法是用较低温度杀灭液体中病原菌或特定微生物，同时保持消毒物中所需不耐热物质不变质，如牛奶、某些酒类等消毒。常用的方法是（）。

A.70.7℃，40～60秒

B.71.7℃，15～30秒

C.72.7℃，5～10秒

D.73.7℃，2～5秒

E.74.7℃，1～2秒

改革党和国家领导体制是为了( )。

A．加强党的领导，改善党的领导
B．发展社会主义民主，健全社会主义法制
C．改善人民生活，发展社会主义经济
D．充分发挥社会主义制度的优越性，推进现代化建设事业的发展

To persuade consumers to buy more of its cameras, the PictureSharp Camera company has launched an advertising campaign in coordination with its dealers to promote the slogan, ’A Picture Is Worth a Million Words." The dealers participating in the program are experiencing very robust sales, but PictureSharp analysts are concerned that the campaign is not successfully meeting its goals. Which of the following, if true, most justifies the concerns of the PictureSharp analysts that the campaign is not successful ？（）

A. The new PictureSharp slogan is a thinly veiled imitation of the better-known saying, "a picture is worth a thousand words."

B. PictureSharp is one of the leading manufacturers of digital cameras, which although generally more expensive than conventional film cameras, are considerably more versatile.

C. Many consumers who saw the commercials in this advertising campaign were concerned that they lacked the artistic skill to create a picture that would actually be worth "a million words."

D. Although almost all PictureSharp camera dealers participated in the advertising campaign by displaying promotional materials in their stores, some of them did not display or distribute all of the marketing materials that PictureSharp sent them.

E. All PictureSharp dealers also sell other brands of cameras, some of which are comparable to PictureSharp cameras in features and quality but significantly lower in price, allowing the dealers to charge a higher markup than for PictureSharp cameras.