最新公告:
动物细胞培养时,悬浮培养适用于型动物细胞,贴壁培养适用于贴壁依赖型细胞。除此之外还有一种培养对两类细胞都适用。
中国佛教组织的名称是( )
A.“中国佛教协会” B.“中国佛教学会”
C.“中国佛教徒协会” D.“中国佛教徒联合会”
在下面几种格式的多媒体中,不考虑声音质量,单位时间占用磁盘空间最小的是( )。
A.wav B.mid C.mp3 D. rm
地籍特性为、、、。
A transformation is occurring that should greatly __1__ living standards in the developing world. Places that __2__ recently were deaf and dumb are rapidly acquiring __3__ telecommunications. Many developing countries are planning to invest vast sums of money __4__ their telecommunications networks to allow them to __5__ with developed countries. They believe this will __6__ foreign and domestic investment. However, how fast these nations should push __7__ is a matter of debate. And some developing countries __8__ experience in weighing costs and choosing between technologies. Vietnam, __9__ particular, though desperate for any phones, requires that all mobile phones be expensive digital models. Still, there is __10__ dispute that communications will be a key factor __11__ the winners from the losers. Over the next decade, China plans to pour some $100 billion into telecommunications equipment. Telecommunications is also a key __12__ Shanghai’s ambition of becoming a top financial center. Shanghai plans to be as electronically advanced __13__ New York. __14__, some other developing countries and areas such as Hungary, Latin America, and Thailand are all hoping to jump into the modern world __15__ means of telecommunication revolution. For countries that have lagged __16__ for so long, the temptation to move ahead in one jump is hard to __17__. And __18__ the mistakes they’ll make, they’ll persist ―__19__ day they can cruise alongside Americans and Western Europeans __20__ the information superhighway.
13
A as
B to
C so
D such
逻辑删除da数据库中从1~3号记录使用的命令为( )
A use da B use da
Delete next 3 Delete next 4
C use da D use da
Delete rest 4 Skip 1
Delete next 4