皮皮学，免费搜题
登录
搜题
【单选题】
下图表示某处于平衡状态的生物种群因某些变化导致种群中生物个体数量改变的四种情形，有关产生这些变化的原因的分析中，不正确的是 [ ]A.
若图①所示为草原生态系统中某羊群，则a点后的变化原因可能是过度放牧
B.
若图②所示为某湖泊中草鱼的数量，则b点后变化原因就是草鱼的繁殖能力增强
C.
图③中c点后发生的变化表明生态系统的抵抗外来干扰的能力有一定限度
D.
图④曲线可用于指导灭虫，如果将害虫仅消灭到K/2的数量，就达不到理想效果
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】－－－－ English, as a living language, ________ all the time.－－－－ Right. Who knows what it will be l
A.
2. ---- English, as a living language, ________ all the time. ---- Right. Who knows what it will be like in the years to come? A．will change
B.
is changing
C.
was changing
D.
has changed
【判断题】Now, English is used as the first language and official language in Singapore.
A.
正确
B.
错误
【单选题】Which statement is true about the relationship between cultural knowledge and language itself?
A.
Cultural knowledge is more important than language itself.
B.
Cultural knowledge is less important than language itself.
C.
Cultural knowledge is closely related to language itself.
D.
Cultural knowledge can be separated from language itself.
【简答题】如图所示的商品,主要功能是将单个耳机插孔装换为两个耳机插孔。
【简答题】One of the general views on language is that language is a set of __________________ .
【单选题】English is a ____________ language while Chinese is a language of ____________.
A.
hypotaxis, Parataxis
B.
Parataxis, hypotaxis
【单选题】以下哪项符合休克代偿期临床表现的特点
A.
血压下降，脉压显著缩小，心率加快，尿量减少
B.
血压下降，脉压轻度缩小，心率加快，尿量减少
C.
血压下降，脉压无变化，心率加快，尿量正常
D.
血压轻度下降，脉压无变化，心率加快，尿量减少
E.
血压正常或稍高，脉压缩小，心率加快，尿量正常或减少
【简答题】second language
【简答题】The actualproduction and comprehension of the speech by speakers of a language iscalled________.A. grammarrules B. competence C. performance D. languagedevice
相关题目：
参考解析：
知识点：
题目纠错 0
发布
