简答题：Nowadays, people think things that can be bought are best f

题目内容：

Nowadays, people think things that can be bought are best for children, rather than things that can be found.

参考答案：

答案解析：

The author's profound belief is that people instinctively s

The author's profound belief is that people instinctively seek nature in differ

分类：英语四级题型：简答题

分类：英语四级题型：简答题

根据物质分子大小差别进行分离的方法是A．凝胶过滤 B．超速离心法 C．离子交换树脂 D．膜分离法 E．聚酰胺吸附色谱

分类：英语四级题型：简答题

麦芽糖酶可水解A．α-葡萄糖苷键 B．β-葡萄糖苷键 C．α-去氧糖苷键 D．β-果糖苷键 E．S-苷键

分类：英语四级题型：简答题

与少量水共研，形成黄棕色乳状液的中药材是A．没药 B．血竭 C．乳香 D．儿茶 E．五倍子

分类：英语四级题型：简答题