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【简答题】
钻石的4C分级主要考虑 、 、 和 四个方面。
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反馈参考答案：
举一反三
【单选题】在正常人的血浆中,每100ml含Ca2+离子为10mg,计算正常人血浆中的Ca2+的物质的量浓度为( )。
A.
2.5mmol/L
B.
2.5mol/L
C.
0.25mmol/L
D.
0.25mol/L
【单选题】A ______ refers to an animal that is born from its mother's body, not from an egg, and drinks its mother's milk as a baby.
A.
mammoth
B.
penguin
C.
mosquito
D.
mammal
【单选题】—Let’s have oranges. — ________.
A.
That’s sound good
B.
That sound good
C.
That sounds good
【简答题】A．It's better than it was. B．It's not as good as it was. C．It's as good as it used to be. D．It was even worse than now.
【单选题】_____ the milk and set a good example to the other children.
A.
Drink
B.
To drink
C.
Drinking
D.
Having drinking
【单选题】—Let's have oranges. —_____. [ ]
A.
That's sound good
B.
That sound good
C.
That's sounds good
D.
That sounds good
【简答题】什么是信号杂质?请举例说明信号杂质及此杂质的存在对药物有什么影响?
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