下列关于荒漠化的叙述，正确的是( ) A.荒漠化只发生在干旱半干旱区 B.西北地区的荒漠化是气候异常造成的 C.是土地退化的一种表现 D.盐渍化不属
如图当开关S闭合时两只小鸟中可能触电的是 （选填“甲或乙”）
（08年宁波市模拟） 设，则等于A． B． C． D．
I think Linda dances_________ than Nelly. A. badly B. worse C. worst D. more badly
同等数量的黑白围棋子，可以组成具有凌厉的攻势的胜局，也可以组成破绽百出的败局。这一事例说明（ ） A.联系是普遍的、客观的 B.质变和量变
.Your bicycle looks _____ as mine. When did you get it? A. same B. like C. the same D. /
Most film adaptation are _______ than the books they’re based on.A. very well-known B. far better-knownC. fairly well-known
任务型阅读 The summer holiday is coming, which can be a relaxing time for sleeping, eating good meals and seeing old friends. Try to take some time off from school and spend a few weeks of fun
若函数
在
上是奇函数，则
的解析式为（ ）．
B．
D．
∴
，
．