正确答案: B
易化扩散
题目:物质在膜蛋白质帮助下,顺浓度梯度或电位梯度通过细胞膜的过程属于( )
解析:B
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举一反三的答案和解析:
[单选题]由个别到一般的论证方法是
归纳论证
[单选题]请将正确答案填在第32处
figure
解析:读书的时候你需要看着单词,弄清楚它们的意思,因此用figure out“弄清楚,搞明白”。而look out“留心,当心”;set out“出发”;take out“取出”,都不合语境,故选A。
[单选题]王某立下一份遗嘱,指定其女王兰继承遗产。此时,王兰对王某财产的继承权属于( )。
期待权
解析:B。被继承人死亡之前,其继承人的继承权不得行使,是期待权,故答案是B。
[单选题]遗传多样性是发生在( )
分子水平
[单选题]Directions: There are 15 incomplete sentences in this section. For each sentence there are four choices marked A, B, C and D. Choose one answer that best completes the sentence and blacken the corresponding letter on the answer sheet.6. ______ the look on his face, he wasn't satisfied with their performance.
Judging by
[单选题]Do you think it necessary ______ an English diary every day?
to keep
[单选题]第 5 题 可持续发展强调( )
经济、社会、环境的协调发展
[单选题]《山居秋暝》中,表现作者有隐居山中之意的诗句是( )
随意春芳歇,王孙自可留