The author concludes that historical changes would ________

The author concludes that historical changes would ________A.be delayed without

查看答案

原生演替的速度比次生演替的速度(  )

原生演替的速度比次生演替的速度(  )A.快 B.慢 C.相等 D.依具体情况而定

查看答案

处置突发性公共事件的首要原则是(  )。

处置突发性公共事件的首要原则是(  )。

查看答案

New drivers are far more __________ to have accidents than e

New drivers are far more __________ to have accidents than experienced drivers.

查看答案

记忆一份材料时,中间部分的记忆效果优于开始和末尾部分,这种现象称为系列位置效应。(  )

记忆一份材料时,中间部分的记忆效果优于开始和末尾部分,这种现象称为系列位置效应。(  )

查看答案