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【简答题】
标准物质可用于______、______、______和质量控制。
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举一反三
【单选题】Read the following statements , then listen to the conversation again and decide whether it is giving advice or responding to advice. It's a good idea to study with friends at the same time each day.
A.
It is giving advice.
B.
It is responding to advice.
【简答题】请回答:现代生态学发展的特点
【简答题】点的 Y 坐标反映了该点离开 ______ 投影面的距离。
【简答题】It is good advice for most people to______.
【单选题】It is good advice to keep in mind that ______.
A.
each individual should be treated differently
B.
all individual group members show the same cultural values
C.
common cultural patterns are always in the dominant culture
D.
co-cultural groups should be assimilated into the dominant ones
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