制备血小板、粒细胞的离心温度为(),制备其他血液成分的离心温度为()。
参考答案:22±2℃;4±2℃
澳大利亚的农牧业十分发达,是世界上_______数和_______出口最多的国家,还是重要的_______、_______出口国。
在下列横线上填入适当的单词,补全对话。
A:Kangkang,you looked 小题1: . What’s wrong?
小题1:
B:I have a headache.
A:I’m sorry to hear that. What 小题2: it?
小题2:
B:I watched a soccer game on TV last night and went to bed very late.
A:I see. 小题3: up late is bad for your health. You should go to bed early and you’ll feel 小题4: tomorrow.
小题3:
小题4:
B:Right! I 小题5: _ have a good rest.
小题5: