Task 2
Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.
As the cost of "v-mail" (video mail) service drops, an "I miss you" message from a far away sweetheart or a "Happy Birthday" serenade(小夜曲) from Grandma could soon be winging its way to your mailbox. A variety of companies have recently introduced cheap video-mail offerings that manage to force a one-minute multimedia(多媒体) message to the size of a one-page Word document. And the prices of web cameras—ranging from $25 to $150—are dropping fast. According to a recent Forrester Research study in the US, 94% of Internet users send an e-mail at least once a week, and 41% send pictures through e-mail once a week, which shows a huge market.
A number of Internet service providers believe that consumers will be eager to use voice and video e-mail. AT&T WorldNet, Microsoft Corp's WebTV, Yahoo, to name a few, have all jumped on the v-mail bandwagon(乐队花车). All that's required is a standard web camera and video-mall software, some suppliers charge a monthly fee for either an unlimited or set amount of v-mails. But while the technology is predicted to make in-roads in one's mailbox, it will likely be a while before it becomes a favored tool of advertisers.
v-mail service may provide a mail service together with ______.
A.pictures and sound
B.letters and documents
C.an "I miss you" message
D.a "Happy Birthday" serenade
第1题
急性牙间龈乳头炎的病因应除外()
A.硬食物刺伤
B.局部用药
C.充填物悬突
D.食物嵌塞
E.邻面龋
第2题
急性牙间龈乳头炎的病因应除外
A.硬食物刺伤
B.局部用药
C.充填物悬突
D.食物嵌塞
E.邻面龋
第3题
急性牙间龈乳头炎的病因应除外牙周膜的急性炎症
A、硬食物刺伤
B、局部用药
C、充填物悬突
D、食物嵌塞
E、邻面龋
第4题
下列不是急性牙间龈乳头炎的病因是
A、硬食物刺伤
B、局部用药
C、充填物悬突
D、食物嵌塞
E、邻面龋
第5题
急性龈乳头炎的病因如下,除外
A、硬食物刺伤
B、局部用碘甘油
C、充填物悬突
D、食物嵌塞
E、邻面龋
第6题
急性龈乳头炎可能的病因是()
A.食物嵌塞
B.不适当使用牙签
C.邻面龋尖锐边缘刺激
D.充填体悬突
E.以上皆有可能
第7题
急性龈乳头炎的病因不包括
A.食物嵌塞
B.冷热刺激
C.不恰当的剔牙
D.医源性因素(化学药物、充填体悬突、不良修复体边缘等)
E.食物刺伤
第8题
引起慢性龈炎的局部刺激因素如下,除外
A.邻面充填物高点
B.食物嵌塞
C.牙列不齐
D.牙石
E.不良修复体
第9题
水平型食物嵌塞的原因
A.牙龈萎缩
B.充填式牙尖
C.相邻牙边缘嵴不在同一水平面
D.充填物悬突
E.邻牙触点丧失
第10题
食物嵌塞的危害有:
A.牙周组织炎症
B.牙龈退缩
C.龈乳头炎
D.邻面龋
E.牙槽骨吸收
F.口臭
G.牙石
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!